Report/Guide

Williams, K R; Braysher, E C; Brown, A S; Brown, R J C; Butterfield, D M; Cheong, J H L; Robins, C C; Showman, Y A (2025) The UK Heavy Metals Monitoring Network: Annual Report 2024. NPL Report. ENV 60

Ciupek, K; Tompkins, J; Williams, K; Brown, A; Robins, C; Allerton, J; McGhee, E; Kantilal, V; Walker, D; Bradshaw, C; Lilley, A; Butterfield, D; Brown, R J C; Priestman, M; Tremper, A; Ek, D; Green, D (2024) Airborne particle concentrations, particle numbers, and black carbon in the United Kingdom - annual report 2023. NPL Report. ENV 57

Williams, K R; Braysher, E C; Cheong, J H L; Robins, C C; Kantilal, V; Butterfield, D M; Lilley, A; Bradshaw, C; Brown, A S; Brown, R J C (2024) Annual Report for 2023 on the UK Heavy Metals Monitoring Network. NPL Report. ENV 55

Ciupek, K; McGhee, E; Tompkins, J; Williams, K; Brown, A; Butterfield, D; Allerton, J; Bradshaw, C; Lilley, A; Kantilal, V; Robins, C; Sweeney, B; Brown, R J C; Priestman, M; Fuller, G; Green, D; Tremper, A (2023) Airborne Particle Concentrations, Particle Numbers and Black Carbon in the United Kingdom - Annual report 2022. NPL Report. ENV 50

Williams, K R; Braysher, E C; Cheong, J H L; Robins, C C; Kantilal, V; Butterfield, D M; Lilley, A; Bradshaw, C; Brown, A S; Brown, R J C (2023) Annual Report for 2022 on the UK Heavy Metals Monitoring Network. NPL Report. ENV 51

Goddard, S L; Williams, K R; Brown, R J C; Butterfield, D M; Robins, C; Lilley, A; Bradshaw, C; Sweeney, B; Brown, A S; Sims, A (2023) Annual Report for 2020 on the UK Heavy Metals Monitoring Network. NPL Report. ENV 48

Williams, K R; Goddard, S L; Braysher, E C; Brown, R J C; Butterfield, D M; Robins, C; Lilley, A; Bradshaw, C; Sweeney, B; Brown, A S (2023) Annual report for 2021 on the UK Heavy Metals Monitoring Network. NPL Report. ENV 49

Tompkins, J; McGhee, E; Ciupek, K; Williams, K; Robins, C; Allerton, J; Quincey, P; Brown, A; Brown, R J C; Green, D; Tremper, A; Priestman, M; Font Font, A (2021) Airborne particulate concentrations and numbers in the United Kingdon: Annual Report 2019. NPL Report. ENV 39

Goddard, S L; Brown, R J C; Butterfield, D M; McGhee, E A; Robins, C; Beccaceci, S; Lilley, A; Bradshaw, C; Haynes, E (2020) Annual Report for 2016 on the UK Heavy Metals Monitoring Network. NPL Report. ENV 31

Goddard, S L; Brown, R J C; Butterfield, D M; McGhee, E A; Robins, C; Williams, K; Lilley, A; Bradshaw, C; Sweeney, B; Brown, L (2020) Annual Report for 2018 on the UK Heavy Metals Monitoring Network. NPL Report. ENV 29

Goddard, S L; Brown, R J C; Butterfield, D M; Robins, C; Williams, K; Lilley, A; Bradshaw, C; Sweeney, B; Brown, L; Sims, A (2020) Annual Report for 2019 on the UK Heavy Metals Monitoring Network. NPL Report. ENV 30

Goddard, S L; Brown, R J C; Butterfield, D M; McGhee, E A; Robins, C; Williams, K; Lilley, A; Bradshaw, C; Haynes, E; Brown, L (2020) Annual report for 2017 on the UK Heavy Metals Monitoring Network. NPL Report. ENV 28

Bacquart, T; van der Veen, A M H*; Bartlett, S; Ent, H*; van Wijk, J I T*; Minarro, M D; Hill-Pearce, R E; Brewer, P J; Brown, R J C; Brown, A S; Murugan, A (2017) Euramet 1220: International comparability on hydrogen purity analysis. NPL Report. ENV 16

Beccaceci, S; McGhee, E; Robins, C; Butterfield, D; Tompkins, J; Quincey, P; Brown, R J C; Green, C; Tremper, A; Priestman, M; Font Font, A (2016) Airborne Particulate Concentrations and Numbers in the United Kingdom (phase 3) Annual report 2015. NPL Report. ENV 11

Goddard, S L; Brown, R J C; Butterfield, D M; McGhee, E A; Robins, C; Beccaceci, S; Lilley, A; Bradshaw, C; Haynes, E (2016) Annual report for 2015 on the UK Heavy Metals Monitoring Network. NPL Report. ENV 9

Tompkins, J; Goddard, S L; Hussain, D; Hessey, I; Brown, R J C; Quincey, P G; Haynes, E (2016) Annual report for 2015 on the UK PAH Monitoring and Analysis Network. NPL Report. ENV 10

Goddard, S L; Brown, R J C; Butterfield, D M; McGhee, E A; Robins, C; Brown, A S; Beccaceci, S; Lilley, A; Bradshaw, C; Brennan, S (2015) Annual report for 2014 on the UK Heavy Metals Monitoring Network. NPL Report. ENV 2

Tompkins, J; Beccaceci, S; Goddard, S L; Hussain, D; Hessey, I; Brown, R J C; Quincey, P G; Whiteside, K; Hughey, P; Brennan, S (2015) Annual report for 2014 on the UK PAH monitoring and analysis network. NPL Report. ENV 4

Goddard, S L; Brown, R J C; Butterfield, D M; McGhee, E; Robins, C; Brown, A S; Beccaceci, S; Whiteside, K J; Bradshaw, C; Brennan, S (2015) Annual report for 2013 on the UK Heavy Metals Network. NPL Report. ENV 1

Beccaceci, S; McGhee, E; Robins, C; Butterfield, D M; Tompkins, J; Quincey, P G; Brown, R J C; Brennan, S; Green, D*; Tremper, A*; Priestman, M*; Font Font, A* (2015) Airborne particulate concentrations and numbers in the United Kingdom (phase 3), annual report 2014. NPL Report. ENV 6

Beccaceci, S; McGhee, E; Robins, C; Tompkins, J; Quincey, P; Brown, R J C; Butterfield, D M; Green, D*; Tremper, A*; Priestman, M*; Font Font, A*; Jones, A* (2014) Airborne particulate concentrations and numbers in the United Kingdom (phase 3). Annual report 2013. NPL Report. AS 93

Brewer, P J; Brown, R J C; Panagoulia, D; Tromans, A*; Reyes, A*; Arce, M*; Vospelova, A*; Pratt, K W*; Asakai, T*; Jakobsen, P T*; Jensen, H*; Oliveira, C S*; Camoes, M F*; Spitzer, P*; Adel, B*; Mariassy, M*; Vyskocil, L*; Fisicaro, P*; Stoica, D*; Uysal, E* (2014) CCQM P37.2: international comparison on Ag|AgCl electrodes for pH measurement. NPL Report. AS 89

Allen, N D C; Brewer, P J; Brown, R J C; Lipscombe, R P; Woods, P T (2014) Intercomparison exercise for the analysis of components in indoor air. NPL Report. AS 86

Brewer, P J; Minarro, M D; Amico di Meane, E; Brown, R J C; Tuma, D*; Fröhlich, M*; Beránek, J*; Gilge, S*; Walden, J*; Cieciora, D*; Sega, M*; Lagler, F*; Mace, T*; Pascale, C*; Fükö, J*; Valkova, M*; Stummer, V*; Nieuwenkamp, G*; van der Veen, A M H* (2014) Key Comparison of nitrogen monoxide in nitrogen relevant to ambient levels (EURAMET QM-K26a / Project 1183). NPL Report. AS 87

Sarantaridis, D; Goddard, S L; Hussain, D; Whiteside, K J; Hughey, P; Brown, A S; Brown, R J C; Brennan, S (2014) Annual Report for 2012 on the UK PAH monitoring and analysis network. NPL Report. AS 84

Beccaceci, S; Mustoe, C L; Butterfield, D M; Tompkins, J; Sarantaridis, D; Quincey, P; Brown, R J C; Green, D*; Fuller, G*; Tremper, A*; Font Font, A*; Jones, A* (2013) Airborne Particulate Concentrations and Numbers in the United Kingdom (phase 3). Annual report 2012. NPL Report. AS 83

Ferracci, V; Brown, A S; Harris, P M; Brown, R J C (2013) An investigation of the matrix sensitivity of refinery gas analysis using gas chromatography with flame ionisation detection. NPL Report. AS 82

Minarro, M D; Brown, R J C; Brewer, P J (2013) Review of existing methods for generating dynamic reference standards of key airborne molecular contaminants. NPL Report. AS 81

Beccaceci, S; Mustoe, C L; Butterfield, D M; Tompkins, J; Sarantaridis, D; Quincey, P; Brown, R J C; Green, D*; Grieve, A*; Jones, A* (2013) Airborne particulate concentrations and numbers in the United Kingdom (phase 3). Annual report 2011. NPL Report. AS 74

Brown, A S; Sarantaridis, D; Butterfield, D M; Brown, R J C; Whiteside, K J; Hughey, P; Goddard, S L; Hussain, D; Williams, M (2012) Annual Report for 2011 on the UK PAH Monitoring and Analysis Network. NPL Report. AS 71

Brown, R J C; Brown, A S (2012) The effect of degradation by gaseous oxidants on measured benzo[a]pyrene concentrations. NPL Report. AS 72

Brown, R J C; Butterfield, D M; Goddard, S L; Mustoe, C L; Robins, C; Brown, A S; Beccaceci, S; Whiteside, K J; Williams, M (2012) Annual report for 2011 on the UK Heavy Metals Monitoring Network. NPL Report. AS 69

Butterfield, D M; Brown, R J C (2012) Polycyclic aromatic hydrocarbons in Northern Ireland. NPL Report. AS 66

Brown, A S; Butterfield, D M; Brown, R J C; Hughey, P; Whiteside, K; Goddard, S L; Williams, M (2011) Annual Report for 2010 on the UK PAH Monitoring and Analysis Network. NPL Report. AS 62

Beccaceci, S; Muhunthan, D; Sarantaridis, D; Tompkins, J; Butterfield, D M; Quincey, P; Brown, R J C; Green, D*; Grieve, A*; Fuller, G*; Jones, A* (2011) CPEA 28: Airborne particulate concentrations and numbers in the United Kingdom (phase 2). NPL Report. AS 65

Brewer, P J; Brown, R J C; Gonzaga, F B*; Hongyu, X*; Bing, W*; Spitzer, P*; Jakobsen, P T*; Chanpion, R*; Fisicaro, P*; Stoica, D*; Ohata, M*; Vyskocil, L*; Mariassy, M*; Pratt, K*; Monroy, M*; Reyes, A*; Kozlowski, W*; Kardash, E*; Ivanova, D*; Camoes, M F*; Lee, H*; Hwang, E* (2011) CCQM P37.1: preparation of Ag/AgCl electrodes for harned cell measurements. NPL Report. AS 60

Brown, R J C; Butterfield, D M; Goddard, S L; Muhunthan, D; Robins, C; Brown, A S; Beccaceci, S; Williams, M (2011) Report to the Department of Environment, Food and Rural Affairs, the Welsh Government, the Department of the Environment in Northern Ireland, and the Scottish Government, by the National Physical Laboratory: Annual report for 2010 on the UK Heavy Metals Monitoring Network. NPL Report. AS 61

Brown, R J C; Gilham, R J J (2010) AMC Technical Brief: Nanoparticle Characterisation. Technical Report. Royal Society of Chemistry Analytical Methods Committee.

Beccaceci, S; Muhunthan, D; Butterfield, D M; Gilham, R; Tompkins, J; Sweeney, B; Brown, R J C; Quincey, P; Green, D*; Alexander, J*; Grieve, A* (2010) CPEA 28: Airborne particulate concentrations and numbers in the United Kingdom (phase 2) 2009 annual audit report. NPL Report. AS 51

Brown, R J C; Butterfield, D M; Goddard, S L; Muhunthan, D; Brown, A S; Beccaceci, S; Williams, M (2010) Annual Report for 2009 on the UK Heavy Metals Monitoring Network. NPL Report. AS 49

Brown, R J C; Butterfield, D M; Goddard, S L; Muhunthan, D; Brown, A S; Williams, M (2009) Annual Report for 2008 on the UK Heavy Metals Monitoring Network. NPL Report. AS 34

Butterfield, D; Lipscombe, R P; Brown, R J C; Williams, M (2008) UK Heavy Metals Network expansion report. NPL Report. AS 28

Brown, R J C; Brown, A S; Woods, P T; Brown, R S (2008) Ambient monitoring of benzo-a-pyrene (B[a]P) emissions at two oil refineries. Technical Report.

Brown, R J C; Butterfield, D M; Goddard, S L; Muhunthan, D; Williams, M; Yardley, R E (2008) Annual Report for 2007 on the UK Heavy Metals Monitoring Network. NPL Report. AS 20

Champion, R*; Brown, R J C; Ficicioglu, F*; Ferrarra, E*; Fisicaro, P*; Mariassy, M*; Spitzer, P* (2008) Protocol for evaluation and calibration of on-site pH measuring equipment. Technical Report.

Brown, R J C; Brown, A S; Woods, P T; Brown, R S (2007) Monitoring benzo-a-pyrene (B[a]P) emissions at two oil refineries. NPL Report. AS 1

Brown, R J C; Williams, M; Butterfield, D M; Yardley, R E; Muhunthan, D; Goddard, S L (2007) Report to the Department of Environment, Food and Rural Affairs by the National Physical Laboratory: annual report for 2006 on UK Heavy Metals Monitoring Network. NPL Report. DQL-AS 036

Brown, R J C; Williams, M; Butterfield, D M; Yardley, R E; Muhunthan, D; Woods, P T (2006) Annual report for 2005 on the UK Heavy Metals Network. NPL Report. DQL-AS 026

Brown, R J C; Harrision, N J; Brown, A S; Yardley, R E; Velummylum, D (2006) Report to the Department of Environment, Food and Rural Affairs by the National Physical Laboratory: annual report for 2004 on the UK Heavy Metals Network. NPL Report. DQL-AS 024

Brown, R J C; Milton, M J T; Yardley, R E; Brown, A S; Rivier, C*; Yardin, C* (2005) Analytical methodologies with very low blank levels: implications for practical and empirical evaluations of the limit of detection. NPL Report. DQL-AS 014

Brett, D J L*; Brown, R J C (2005) Electrchemical study of biotin-modified self-assembled monolayers. NPL Report. DQL-AS 013

Brown, R J C; Milton, M J T (2004) Demonstration of the micro-porous structure of silver/silver chloride electrodes and the implications for Harned Cell operation. NPL Report. DQL-AS 001

Brown, R J C; Yardley, R E; Brown, A S; Milton, M J T (2003) Inter-laboratory study of the measurement of Ni, As, Cd and Pb contents of ambient air. NPL Report. COAM 20

Brown, R J C; Milton, M J T; Brewer, P J* (2003) Improved methodology for high accuracy titration of HCl and experimental demonstration of equivalence with coulometry. NPL Report. COAM 18

Brown, R J C; Milton, M J T (2003) Towards an improved determination of the Avogadro constant. NPL Report. COAM 17

Brown, R J C; Milton, M J T; Brewer, P*; Wielgosz, R I (2001) High accuracy titrimetry with application to HCl. NPL Report. COAM 5

Brown, R J C; Milton, M J T; Gallop, J C (2001) Review of techniques for single molecule detection in biological applications. NPL Report. COAM 2

Brown, R J C; Milton, M J T (2001) Uncertainty in the operation of the Harned Cell arising from temperature and bias potential effects. Technical Report. PTB, Germany.

Article

Braysher, E C; Brown, R J C; Brown, A S (2025) Investigation of internal standard use for short‑term drift correction in ICP-MS/MS. Accreditation and Quality Assurance, 30. pp. 221-231.

Braysher, E C; Cheong, J H L; Butterfield, D M; Brown, A S; Brown, R J C (2025) Lead Isotope Ratio Measurements for Source Identification Using Samples from the UK Heavy Metals Air Quality Monitoring Network. Atmosphere, 16 (3). 283

Blattner, P; Brown, R J C (2024) Relating SI units to the ‘defining constants’. Metrologia, 61 (4). 043001

Rabs, S; Brown, R J C (2024) Metrology for a sustainable future. Nature Physics, 20. 880

Braysher, E C; Brown, A S; Brown, R J C; Molden, N (2024) Traceable determination of metal composition of tyres using tandem ICP-MS and benchmarking of emissions inventories. Environmental Science: Processes & Impact, 26 (2). pp. 298-304.

Brown, A S; Barker, S J; Brown, R J C; Wyche, K P; Butterfield, D M (2024) A robust regression analysis method to determine the significance of trends concentrations of heavy metals in UK ambient air and improve network design and emissions inventories. Environmental Monitoring and Assessment, 196. 101

Brown, R J C (2023) A grey area. Nature Physics, 19. 1948

Twigg, M M; Di Marco, C; McGhee, E; Braban, C F; Nemitz, E; Brown, R J C; Blakley, K C; Leeson, S r; Sanocka, A; Green, D C; Priestman, M; Riffault, V; Bourin, A; Minguillon, M C; Via, M; Ovadnevaite, J; Ceburnis, D; O'Dowd, C; Poulain, L; Stieger, B; Makkonen, U; Rumsey, I C; Beachley, G; Walker, J T; Butterfield, D (2023) The potential of high temporal resolution automatic measurements of PM2.5 composition as an alternative to the filter-based manual method used in routine monitoring. Atmospheric Environment, 315. 120148

Brown, R J C (2023) Non-SI units in the SI and their use with SI prefixes. Metrologia, 60 (5). 053001

Brown, R J C; Guttler, B; Neyezhmakov, P; Stock, M; Wielgosz, R I; Kuck, S; Vasilatou, K (2023) Report of the CCU/CCQM Workshop on “The metrology of quantities which can be counted”. Metrology, 3 (3). pp. 309-324.

Rab, S; Brown, R J C (2023) The UKQI: Status and Importance for National Growth. MAPAN, 38. pp. 975-984.

Brown, R J C (2023) One for all. Nature Physics, 19. p. 1064.

Brown, R J C (2023) Correspondence on “An International Study Evaluating Elemental Analysis”. ACS Central Science, 9 (4). pp. 600-601.

Hua, Y B; Kukkar, D; Brown, R J C; Kim, K H (2023) Recent advances in the synthesis of and sensing applications for metal-organic framework-molecularly imprinted polymer (MOF-MIP) composites. Critical Reviews in Environmental Science and Technology, 53 (2). pp. 258-289.

Brown, R J C; Martin, N A (2023) How standardizing ‘low-cost’ air quality monitors will help measure pollution. Nature Reviews Physics, 5. pp. 139-140.

Brown, R J C (2023) A further short history of the SI prefixes. Metrologia, 60 (1). 013001

Brown, R J C; Milton, M J T (2023) Not just big numbers. Nature Physics, 19. p. 144.

Brown, R J C (2022) Headline of the fifty-year newspaper: ‘Metrology, a multilateral endeavour, facilitates reproducibility in science’. Measurements, 203. 112004

Brown, R J C; Goddard, S L; Williams, K R; Robins, C; Butterfield, D M; Brown, A S (2022) Falling nickel concentrations in ambient air in South Wales – 50 years of progress. Environmental Science: Processes & Impacts, 24 (10). pp. 1821-1829.

Lilley, A; Coleman, M D; Goddard, S L; Mills, E G; Brown, R J C; Robinson, R A; Clack, M J (2022) Inter-Comparability of Analytical Laboratories in Quantifying Polycyclic Aromatic Hydrocarbons Collected from Industrial Emission Sources. Accreditation and Quality Assurance, 27. pp. 155-163.

Brown, R J C (2022) Reply to “Facing a shortage of the Latin letters for the prospective new SI symbols: alternative proposal for the new SI prefixes”. Accreditation and Quality Assurance, 27 (3). pp. 143-144.

Azzouz, A; Kejji, L; Kim, K H; Kukkar, D; Souhail, B; Bhardwaj, N; Brown, R J C; Zhang, W (2022) Advances in surface plasmon resonance-based biosensor technologies for cancer biomarker detection. Biosensors & Bioelectronics, 197. 113767

Grover, A; Mohiuddin, I; Malik, A K; Aulakh, J S; Vikrant, K; Kim, K H; Brown, R J C (2022) Magnesium/aluminum layered double hydroxides intercalated with starch for effective adsorptive removal of anionic dyes. Journal of Hazardous Materials, 424. 127454

Han, Y; Lee, J; Haiping, G; Kim, K H; Wanxi, P; Bhardwaj, N; Oh, J M; Brown, R J C (2022) Plant-based remediation of air pollution: A review. Journal of Environmental Management, 301. 113860

Brown, R J C; Janssen, J T; Wright, L (2022) Why a digital framework for the SI? Measurement, 187. 110309

Kushwaha, A; Goswami, L; Lee, J; Sonne, C; Brown, R J C; Kim, K H (2022) Selenium in soil-microbe-plant systems: Sources, distribution, toxicity, tolerance, and detoxification. Critical Reviews in Environmental Science and Technology, 52 (13). pp. 2383-2420. ISSN 1064-3389

Younis, S A; Kim, K H; Shaheen, S M; Antoniadis, V; Tsang, Y F; Rinklebe, J; Deep, A; Brown, R J C (2021) Advancements of nanotechnologies in crop promotion and soil fertility: Benefits, life cycle assessment, and legislation policies. Renewable & Sustainable Energy Reviews, 152. 111686

Russell, B; Goddard, S L; Mohamud, H; Pearson, O; Zhang, Y; Thompkins, H; Brown, R J C (2021) Applications of hydrogen as a collision and reaction cell gas for enhanced measurement capability applied to low level stable and radioactive isotope detection using ICP-MS/MS. Journal of Analytical Atomic Spectrometry, 36 (12). pp. 2704-2714.

Brown, R J C; Kim, K H (2021) A combined volume correction and standard addition step to simplify environmental chemical analysis. Chemometrics and Intelligent Laboratory Systems, 217. 104397

Brown, R J C; Brewer, P J; Pramann, A; Reinitz, O; Guttler, B (2021) Redefinition of the mole in the revised international systems of units and the ongoing importance of metrology for accurate chemical measurement. Analytical Chemistry, 93 (36). pp. 12147-12155.

Brown, R J C (2021) A metrological approach to quantities that are counted and the unit one. Metrologia, 58 (3). 035014

Brown, R J C; Janssen, JT (2021) The value of stable, comparable and standardised measurement: enabling confidence in decision making for societal challenges. Metrologia, 58 (3). 033001 ISSN 0026-1394

Machin, G; Brown, R J C (2021) What is the difference between resolution, accuracy and uncertainty? Thermology International, 31 (2). pp. 45-46.

Bhogal, S; Mohiuddin, I; Kaur, K; Lee, J; Brown, R J C; Malik, A K; Kim, K H (2021) Dual-template magnetic molecularly imprinted polymer-based sorbent for simultaneous and selective detection of phenolic endocrine disrupting compounds in foodstuffs. Environmental Pollution, 275. 116613 ISSN 02697491

Rai, P K; Lee, J; Brown, R J C; Kim, K H (2021) Micro- and nano-plastic pollution: Behavior, microbial ecology, and remediation technologies. Journal of Cleaner Production, 291. 125240 ISSN 09596526

Singh, H; Bamrah, A; Bhardwaj, S K; Deep, A; Khatri, M; Brown, R J C; Bhardwaj, N; Kim, K H (2021) Recent advances in the application of noble metal nanoparticles in colorimetric sensors for lead ions. Environmental Science Nano, 8 (4). pp. 863-889.

de Krom, I; Bavius, W; Ziel, R; McGhee, E A; Brown, R J C; Živković, I; Gačnik, J; Fajon, V; Kotnik, J; Horvat, M; Ent, H (2021) Comparability of calibration strategies for measuring mercury concentrations in gas emission sources and the atmosphere. Atmospheric Measurement Techniques, 14 (3). pp. 2317-2326. ISSN 1867-8548

Rai, P K; Lee, J; Brown, R J C; Kim, K H (2021) Environmental fate, ecotoxicity biomarkers, and potential health effects of micro- and nano-scale plastic contamination. Journal of Hazardous Materials, 403. 123910 ISSN 03043894

Brown, R J C; Brewer, P J (2021) Reporting uncertainty for gas certified reference materials: balancing customer requirements with calibration and measurement capabilities. Accreditation and Quality Assurance, 26 (1). pp. 41-45. ISSN 0949-1775

Saboor, S; Chelliah, A; Gorantla, K K; Kim, K H; Lee, S H; Shon, Z H; Brown, R J C (2021) Strategic design of wall envelopes for the enhancement of building thermal performance at reduced air-conditioning costs. Environmental Research, 193. 110577 ISSN 00139351

Brown, R J C (2021) Measuring measurement – What is metrology and why does it matter? Measurement, 168. 108408 ISSN 02632241

Mohiuddin, I; Grover, A; Aulakh, J S; Malik, A K; Lee, S S; Brown, R J C; Kim, K (2021) Starch-Mg/Al layered double hydroxide composites as an efficient solid phase extraction sorbent for non-steroidal anti-inflammatory drugs as environmental pollutants. Journal of Hazardous Materials, 401. 123782 ISSN 03043894

Raza, W; Saeed, S; Saulat, H; Gul, H; Sarfraz, M; Sonne, C; Sohn, Z H; Brown, R J C; Kim, K H (2021) A review on the deteriorating situation of smog and its preventive measures in Pakistan. Journal of Cleaner Production, 279. 123676 ISSN 09596526

Brewer, P J; Brown, R J C (2020) Benchmarking the success of CCQM key comparisons for metrology institutes and their stakeholders. Metrologia, 57 (6). 065018 ISSN 0026-1394

Brown, R J C; Brewer, P J (2020) What is a mole? Metrologia, 57 (6). 065002 ISSN 0026-1394

Brown, R J C; Goddard, S L; Harris, P M; Malcolm, H M; Thacker, S A; Lawlor, A J; Guyatt, H J (2020) Consistency and uncertainty of UK measurements of mercury in precipitation. Chemosphere, 258. 127330 ISSN 00456535

Brown, R J C; Janssen, J T (2020) Counting correctly. Accreditation and Quality Assurance, 25. pp. 387-388. ISSN 0949-1775

Bansal, V; Hashemi, B; Raza, N; Kim, K-H; Raza, W; Kumar, P; Brown, R J C (2020) Review of the Analytical Methods for and Clinical Impact of Additives and Flavors Used in Electronic Cigarettes. Exposure and Health, 12. pp. 593-615. ISSN 2451-9766

Brown, R J C (2020) Evolution of the International System of Units: considering the challenge of user adoption. Metrologia, 57 (2). 023001 ISSN 0026-1394

Brown, R J C; Andres, H (2020) How should metrology bodies treat method-defined measurands? Accreditation and Quality Assurance, 25 (2). pp. 161-166. ISSN 0949-1775

Brown, R J C (2020) Reply to “Changing the status of mmHg”. Accreditation and Quality Assurance, 25 (2). pp. 171-172. ISSN 0949-1775

van der Veen, A M H; Zalewska, E T; van Osselen, D R; Fernández, T E; Gómez, C; Beránek, J; Oudwater, R J; Sobrinho, D C; Brum, M C; Augusto, C R; Fükö, J; Büki, T; Nagyné Szilági, Z; Brewer, P J; Downey, M L; Brown, R J C; Valkova, M; Durisova, Z; Arrhenius, K; Magnusson, B; Yaghooby, H; Tarhan, T; Engin, E; Konopelko, L A; Popova, T A; Pir, M N; Efremova, O V (2020) International comparison CCQM-K112 biogas. Metrologia, 57 (1A). 08011 ISSN 0026-1394

Goddard, S L; Williams, K R; Robins, C; Butterfield, D M; Brown, R J C (2019) Concentration trends of metals in ambient air in the UK: a review. Environmental Monitoring and Assessment, 191 (11). 683 ISSN 0167-6369

Goddard, S L; Williams, K R; Robins, C; Brown, R J C (2019) Determination of antimony and barium in UK air quality samples as indicators of non-exhaust traffic emissions. Environmental Monitoring and Assessment, 191 (11). 641 ISSN 0167-6369

Güttler, B; Bettin, H; Brown, R J C; Davis, R S; Mester, Z; Milton, M J T; Pramann, A; Rienitz, O; Vocke, R D; Wielgosz, R I (2019) Amount of substance and the mole in the SI. Metrologia, 56 (4). 044002 ISSN 0026-1394

Brown, R J C (2019) Considerations on compound SI prefixes. Measurement, 140. pp. 237-239. ISSN 02632241

Brown, R J C (2019) Future requirements for non-decimal unit prefixes in chemical measurement. Accreditation and Quality Assurance, 24 (3). pp. 245-247. ISSN 0949-1775

Brewer, P J; Brown, R J C; Mussell Webber, E B; Van Aswegen, S; Ward, M K M; Hill-Pearce, R E; Worton, D R (2019) Breakthrough in Negating the Impact of Adsorption in Gas Reference Materials. Analytical Chemistry, 91 (8). pp. 5310-5315. ISSN 0003-2700

Brown, R J C (2019) On the nature of SI prefixes and the requirements for extending the available range. Measurement, 137. pp. 339-343. ISSN 02632241

Lee, Y S; Kim, K H; Lee, S S; Brown, R J C; Jo, S H (2018) Analytical Method for Measurement of Tobacco-Specific Nitrosamines in E-Cigarette Liquid and Aerosol. Applied Sciences, 8 (12). 2699 ISSN 2076-3417

Brewer, P J; Downey, M L; Atkins, E; Brown, R J C; Brown, A S; Zalewska, E T; van der Veen, A M H; Smeulders, D E; McCallum, J B; Satumba, R T; Kim, Y D; Kang, N; Bae, H K; Woo, J C; Konopelko, L A; Popova, T A; Meshkov, A V; Efremova, O V; Kustikov, Y (2018) International comparison CCQM-K119 liquefied petroleum gas. Metrologia, 55 (1A). 08004 ISSN 0026-1394

Brewer, P J; Brown, R J C; Tarasova, O A; Hall, B; Rhoderick, G C; Wielgosz, R I (2018) SI traceability and scales for underpinning atmospheric monitoring of greenhouse gases. Metrologia, 55 (5). pp. S174-S181. ISSN 0026-1394

Dutta, T; Kim, K H; Brown, R J C; Kim, Y H; Boukhvalov, D (2018) Development of a multi-adsorbent-based thermal desorption (TD)-GC-MS method using metal-organic frameworks and Tenax-TA for concurrent analysis of C1 to C5 aldehydes. Abstracts of Papers of the American Chemical Society, 256.

Tremper, A H; Font, A; Priestman, M; Hamad, S H; Chung, T-C; Pribadi, A; Brown, R J C; Goddard, S L; Grassineau, N; Petterson, K; Kelly, F J; Green, D C (2018) Field and laboratory evaluation of a high time resolution x-ray fluorescence instrument for determining the elemental composition of ambient aerosols. Atmospheric Measurement Techniques, 11 (6). pp. 3541-3557. ISSN 1867-8548

Brown, R J C (2018) The evolution of chemical metrology: distinguishing between amount of substance and counting quantities, now and in the future. Metrologia, 55 (3). pp. L25-L33. ISSN 0026-1394

Szulejko, J; Adelodun, A; Kim, K H; Seo, J; Vellingiri, K; Jeon, E C; Hong, J; Brown, R J C (2018) Short and Long-Term Temporal Changes in Air Quality in a Seoul Urban Area: The Weekday/Sunday Effect. Sustainability, 10 (4). 1248 ISSN 2071-1050

Khan, A; Szulejko, J E; Kim, K H; Brown, R J C (2018) Airborne volatile aromatic hydrocarbons at an urban monitoring station in Korea from 2013 to 2015. Journal of Environmental Management, 209. pp. 525-538.

Brewer, P J; Brown, R J C; Resner, K V; Hill-Pearce, R E; Worton, D R; Allen, N D C; Blakley, K C; Benucci, D; Ellison, M R (2018) Influence of Pressure on the Composition of Gaseous Reference Materials. Analytical Chemistry, 90 (5). pp. 3490-3495. ISSN 0003-2700

Dutta, T; Kim, K H; Brown, R J C; Kim, Y H; Boukhvalov, D (2018) Metal-organic framework and Tenax-TA as optimal sorbent mixture for concurrent GC-MS analysis of C1 to C5 carbonyl compounds. Scientific Reports, 8. 5033

Raza, N; Kim, K H; Abdullah, M; Raza, W; Brown, R J C (2018) Recent developments in analytical quantitation approaches for parabens in human-associated samples. TRAC - Trends in Analytical Chemistry, 98. pp. 161-173.

Viallon, J; Flores, E; Idrees, F; Moussay, P; Wielgosz, R I; Kim, D; Kim, Y D; Lee, S; Persijn, S; Konopelko, L A; Kustikov, Y A; Malginov, A V; Chubchenko, I K; Klimov, A Y; Efremova, O V; Zhou, Z; Possolo, A; Shimosaka, T; Brewer, Paul; Macé, T; Ferracci, V; Brown, R J C; Aoki, N (2017) CCQM-K90, formaldehyde in nitrogen, 2 μmol mol−1 Final report. Metrologia, 54 (1A). 08029 ISSN 0026-1394

Brown, R J C; Harris, P M (2017) Predicting the frequency of extreme air quality events. Environmental Science - Processes & Impact, 19 (12). pp. 1499-1504.

Kumar, P; Vellingiri, K; Kim, K H; Brown, R J C; Manos, M J (2017) Modern progress in metal-organic frameworks and their composites for diverse applications. Microporous and Mesoporous Materials, 253. pp. 251-265.

Brown, R J C; Beccaceci, S; Butterfield, D M; Quincey, P G; Harris, P M; Maggos, T; Panteliadis, P; John, A; Jedynska, A; Kuhlbusch, T A J; Putaud, J P; Karanasiou, A (2017) Standardisation of a European measurement method for organic carbon and elemental carbon in ambient air: results of the field trial campaign and the determination of a measurement uncertainty and working range. Enviornmental Science - Processes & Impacts, 19 (10). pp. 1249-1259.

Bharath, V J; Jervis, J R; Bailey, J J; Engebretsen, E; Neville, T P; Millichamp, J; Mason, T; Shearing, P R; Brown, R J C; Manos, G; Brett, D J L (2017) Effect of humidity on the interaction of CO2 with alkaline anion exchange membranes probed using the quartz crystal microbalance. International Journal of Hydrogen Energy, 42 (38). pp. 24301-24307.

Bharath, V L*; Jervis, R*; Millichamp, J*; Neville, T P*; Mason, T*; Tjaden, B*; Shearing, P R*; Brown, R J C; Manos, G*; Brett, D J L* (2017) Alkaline anion exchange membrane degradation as a function of humidity measured using the quartz crystal microbalance. Int. J. Hydrog. Energy, 42 (9). pp. 6243-6249.

Brown, R J C; Braysher, E C*; McGhee, E A; Goddard, S L; Ent, H*; Kim, K H*; Nielsen, J* (2017) Characterising and reducing the blank response from mercury vapour sorbent tubes. Anal. Methods, 9 (18). pp. 2654-2659.

Nguyen, H T*; Kwon, E E*; Kim, K H*; Pandey, S K*; Chambers, S*; Kumar, P*; Kang, C H*; Cho, S J*; Oh, J M*; Brown, R J C (2017) Factors regulating the distribution of O-3 and NOx at two mountainous sites in Seoul, Korea. Atmos. Pollution Res., 8 (2). pp. 328-337.

Brown, R J C; Brewer, P J; Kim, K H* (2017) Fixed volume sequential standard addition calibration: value assignment of impurities in zero gas. Chemometr. Intell. Lab. Syst., 164. pp. 52-55.

Khan, A; Kim, K H; Szulejko, J E; Brown, R J C; Jeon, E C; Oh, J M; Shin, Y S; Adelodun, A A (2017) Long-term trends in airborne SO2 in an air quality monitoring station in Seoul, Korea, from 1987 to 2013. Journal of the Air & Waste Management Association, 67 (8). pp. 923-932.

Brown, R J C; Brewer, P J; Harris, P M; Davidson, S; van der Veen, A M H*; Ent, H* (2017) On the traceability of gaseous reference materials. Metrologia, 54 (3). L11-L18

Chambers, S D*; Kim, K H*; Kwon, E E*; Brown, R J C; Griffiths, A D*; Crawford, J* (2017) Statistical analysis of Seoul air quality to assess the efficacy of emission abatement strategies since 1987. Sci. Total Environ., 580. pp. 105-116.

Quincey, P; Brown, R J C (2017) A clearer approach for defining unit systems. Metrologia, 54 (4). pp. 454-460.

Kim, K H*; Brown, R J C; Kwon, E*; Kim, I S*; Sohn, J R* (2016) Atmospheric mercury at an urban station in Korea across three decades. Atmos. Environ., 131. pp. 124-132.

Goddard, S L; Brown, R J C; Ghatora, B K* (2016) Determination of beryllium concentrations in UK ambient air. Atmos. Environ., 147. pp. 320-329.

Quincey, P G; Brown, R J C (2016) Implications of adopting plane angle as a base quantity in the SI. Metrologia, 53 (3). pp. 998-1002.

Allen, N D C; Brewer, P J; Brown, R J C; Lipscombe, R P; Woods, P T (2016) International comparison of key volatile organic components in indoor air. Measurement, 82. pp. 476-481.

Bharath, V J*; Millichamp, J*; Neville, T P*; Mason, T J*; Shearing, P R*; Brown, R J C; Manos, G*; Brett, D J L* (2016) Measurement of water uptake in thin-film Nafion and anion alkaline exchange membranes using the quartz crystal microbalance. J. Membr. Sci., 497. pp. 229-238.

Vellingiri, K*; Szulejko, J E*; Kumar, P*; Kwon, E E*; Kim, K H*; Deep, A*; Boukhvalov, D W*; Brown, R J C (2016) Metal organic frameworks as sorption media for volatile and semi-volatile organic compounds at ambient conditions. Sci. Rep., 6. p. 27813.

Dai, J*; Kim, K H*; Dutta, T*; Park, W M*; Hong, J K*; Jung, K*; Brown, R J C (2016) Monitoring of airborne particulate matter at mountainous urban sites. Environ. Monit. Assess., 188 (8). p. 490.

Ahmed, E*; Deep, A*; Kwon, E E*; Brown, R J C; Kim, K H* (2016) Performance comparison of MOF and other sorbent materials in removing key odorants emitted from pigeon slurry. Sci. Rep., 6. p. 31283.

Beccaceci, S; Brown, R J C; Butterfield, D M; Harris, P M; Otjes, R P*; van Hoek, C*; Makkonen, U*; Catrambone, M*; Patier, R F*; Houtzager, M M G*; Putaud, J P* (2016) Standardisation of a European measurement method for the determination of anions and cations in PM2.5: results of field trial campaign and determination of measurement uncertainty. Environ. Sci. - Process. Impacts, 18 (12). pp. 1561-1571.

Quetel, C R*; Zampella, M*; Brown, R J C (2016) Temperature dependence of Hg vapour mass concentration at saturation in air: new SI traceable results between 15 and 30 ºC. TRAC Trends Anal. Chem., 85. pp. 81-88.

Brown, R J C; Butterfield, D M; Goddard, S L; Hussain, D; Quincey, P G; Fuller, G W* (2016) Wavelength dependent light absorption as a cost effective, real-time surrogate for ambient concentrations of polycyclic aromatic hydrocarbons. Atmos. Environ., 127. pp. 125-132.

Minarro, M D*; Brewer, P J; Brown, R J C; Persijn, S*; van Wijk, J*; Nieuwenkamp, G*; Balden, A*; Kaiser, C*; Sutour, C*; Mace, T*; Skundric, N*; Tarhan, T* (2016) Zero gas reference standards. Anal. Methods, 8 (15). pp. 3014-3022.

Quincey, P G; Brown, R J C (2016) The changing role of base units within the revised SI - an opportunity to take dimensional analysis back to its roots. Accred. Qual. Assur., 21 (6). pp. 417-420.

Malley, C S*; Heal, M R*; Braban, C F*; Kentisbeer, J*; Leeson, S R*; Malcolm, H*; Lingard, J J N*; Ritchie, S*; Maggs, R*; Beccaceci, S; Quincey, P; Brown, R J C; Twigg, M M* (2016) The contributions to long-term health-relevant particulate matter at the UK EMEP supersites between 2010 and 2013: quantifying the mitigation challenge. Environ. Int., 95. pp. 98-111.

Kumar, P*; Kim, K H*; Kim, Y H*; Szulejko, J E*; Brown, R J C (2016) A review of metal organic resins for environmental applications. J. Hazard. Mater., 320. pp. 234-240.

Vellingiri, K*; Kim, K H*; Ma, C J*; Kang, C-H*; Lee, J H; Kim, I S*; Brown, R J C (2015) Ambient particulate matter in a central urban atea of Seoul, Korea. Chemosphere, 119. pp. 812-819.

Vellingiri, K*; Kim, K-H*; Jeon, J Y*; Brown, R J C; Jung, M C* (2015) Changes in NOx and O-3 concentrations over a decade at a central urban area of Seoul, Korea. Atmos. Environ., 112. pp. 116-125.

Kumar, P*; Deep, A*; Kim, K H*; Brown, R J C (2015) Coordination polymers: opportunities and challenges for monitoring volatile organic compounds. Prog. Polym. Sci., 45. pp. 102-118.

Brewer, P J; Panagoulia, D; Brown, R J C; Tromans, A*; Reyes, A*; Arce, M*; Vospelova, A*; Rozikova, M*; Pratt, K W*; Asakai, T*; Jakobsen, P T*; Camoes, M F*; Oliveira, C S*; Godinho, I*; Spitzer, P*; Sander, B*; Mariassy, M*; Vyskocil, L*; Fisicaro, P*; Stoica, D*; Uysal, E* (2015) International comparison on Ag|AgCl electrodes for pH measurement. Measurement, 66. pp. 131-138.

Kim, K H*; Pandey, S K*; Brown, R J C; Sheu, G R*; Jeon, E C*; Jung, K*; Kang, C H* (2015) Investigation of the relationship between atmospheric mercury and concentrations of key greenhouse gases at a mountainous monitoring site. Environ. Sci. - Process. Impacts, 17 (3). pp. 646-655.

Ahmed, E*; Kim, K H*; Jeon, E C*; Brown, R J C (2015) Long term trends of methane, non methane hydrocarbons and carbon monoxide in urban atmosphere. Sci. Total Environ., 518. pp. 595-604.

Brown, A S; Murugan, A; Brown, R J C (2015) Measurement of `total halogenated compounds' in hydrogen: is the ISO 14687 specification achievable? Accred. Qual. Assur., 20 (3). pp. 223-227.

Brown, R J C; Brewer, P J (2015) Proposals for nomenclature to clarify the expression of units for counting quantities. Metrologia, 52 (1). pp. L1-L3.

Brown, R J C; Goddard, S L; Butterfield, D M; Brown, A S; Robins, C; Mustoe, C L; McGhee, E A (2015) Ten years of mercury measurement at urban and industrial air quality monitoring stations in the UK. Atmos. Environ., 109. pp. 1-8.

Font, A*; de Hoogh, K*; Leal-Sanchez, M*; Ashworth, D C*; Brown, R J C; Hansell, A L*; Fullre, G W* (2015) Using metal ratios to detct emissions from municipal waste incinerators in ambient air pollution data. Atmos. Environ., 113. pp. 177-186.

Brown, R J C; Brewer, P J; Ent, H*; Fisicaro, P*; Horvat, M*; Kim, K-H*; Quetel, C R* (2015) Who should take responsibility for decisions on internationally recommended datasets? The case of the mass concentration of mercury in air at saturation. Metrologia, 52 (5). L25-L30

Beccaceci, S; McGhee, E A; Brown, R J C; Green, D C* (2015) A comparison between a semi-continuous analyzer and filter-based method for measureing anion and cation concentrations in PM10 at an urban background site in London. Aerosol Sci. Technol., 49 (9). pp. 793-801.

Ferracci, V; Brown, A S; Harris, P M; Brown, R J C (2015) An investigation of the matrix sensitivity of refinery gas analysis using gas chromatography with flame ionisation detection. J. Chromatography A, 1383. pp. 14-150.

Brewer, P J; Leach, A S*; Brown, R J C (2015) The role of the electrolyte in the fabrication of Ag|AgCl reference electrodes for pH measurement. Electrochim. Acta, 161. pp. 80-83.

Sharma, A P*; Kim, K H*; Ahn, J W*; Shon, Z H*; Sohn, J R*; Lee, J H*; Ma, C J*; Brown, R J C (2014) Ambient particulate matter (PM10) concentrations in major urban areas of Korea during 1996-2010. Atmos. Pollution Res., 5 (1). pp. 161-169.

Brown, R J C; Harris, P M; Cox, M G (2014) Assessing the performance of standard methods to predict the standard uncertainty of air quality data having incomplete time coverage. Environ. Sci. - Process. Impacts, 16 (7). pp. 1700-1704.

Brown, R J C; Mustoe, C L* (2014) Demonstration of a standard dilution technique for standard addition calibration. Talanta, 122. pp. 97-100.

Brown, R J C; Webb, W R; Goddard, S L; Kim, K H*; Blakley, K C* (2014) Exact matching strategies for generalised sequential standard addition calibration. Anal. Methods, 6 (1). pp. 102-106.

Kim, Y H*; Kim, K H*; Szulejko, J E*; Bae, M S*; Brown, R J C (2014) Experimental validation of an effective carbon number-based approach for the gas chromatography-mass spectrometry quantification of compounds lacking authentic standards or surrogates. Anal. Chim. Acta, 830. pp. 32-41.

Quetel, C R*; Zampella, M*; Brown, R J C; Ent, H*; Horvat, M*; Paredes, E*; Tunc, M* (2014) International system of units traceable results of Hg mass concentration at saturation in air from newly developed measurement procedure. Anal. Chem., 86 (15). pp. 7819-7827.

Goddard, S L; Brown, R J C (2014) Investigation into alternative sample preparation techniques for the determination of heavy metals in stationary source emission samples collected on quartz filters. Sensors, 14 (11). pp. 21676-21692.

Brown, R J C; Webb, W R*; Goddard, S L (2014) Observation of a physical matrix effect during cold vapour generation measurement of mercury in emissions samples. Anal. Chim. Acta, 823. pp. 20-24.

Rahman, M M*; Kim, K H*; Brown, R J C; Bae, I S*; Park, C G* (2014) PCDD and PCDF concentrations in a traffic tunnel environment. Sci. Total Environ., 493. pp. 773-780.

Rahman, M M*; Shon, Z H*; Ma, C J*; Brown, R J C; Pandey, S K*; Park, C G*; Bae, I S*; Sohn, J R*; Yoon, H O*; Kim, K H* (2014) Partitioning of dioxins (PCDDs/Fs) in ambient air at urban residential locations. Int. J. Environ. Sci. Technol., 11 (7). pp. 1897-1910.

Brewer, P J; Brown, R J C; Miller, M N; Minarro, M D; Murugan, A; Milton, M J T; Rhoderick, G C* (2014) Preparation and validation of fully-synthetic standard gas mixtures with atmospheric isotopic composition for global CO2 and CH4 monitoring. Anal. Chem., 86 (3). pp. 1887-1893.

Brown, R J C; Woods, P T (2014) Proposals for new data quality objectives to underpin ambient air quality monitoring networks. Accred. Qual. Assur., 19 (6). pp. 465-471.

Szulejko, J E*; Kim, K H*; Brown, R J C; Bae, M S* (2014) Review of progress in solvent-extraction techniques for the determination of polyaromatic hydrocarbons as airborne pollutants. TRAC Trends Anal. Chem., 61. pp. 40-48.

Brown, R J C; Van Aswegen, S*; Webb, W R*; Goddard, S L (2014) UK concentrations of chromium and chromium (VI), measured as water soluble chromium, in PM10. Atmos. Environ., 99. pp. 385-391.

Ent, H*; van Andel, I*; Heemskerk, M*; van Otterloo, P*; Bavius, W*; Baldan, A*; Horvat, M*; Brown, R J C; Quetel, C R* (2014) A gravimetric approach to providing SI traceability for concentration measurement results of mercury vapor at ambient air levels. Meas. Sci. Technol., 25 (11). 115801

Brewer, P J; Minarro, M D; di Meane, E A; Brown, R J C (2014) A high accuracy dilution system for generating low concentration reference standards of reactive gases. Measurement, 47. pp. 607-612.

Kim, Y H*; Kim, K H*; Ma, C J*; Shon, Z H*; Park, C G*; Song, S K*; Ro, C U*; Brown, R J C (2014) An investigation into the relationship between the major chemical components of particulate matter in urban air. Chemosphere, 95. pp. 387-394.

Kim, K H*; Kim, Y H*; Kim, B W*; Ahn, J H*; Bae, M S*; Brown, R J C (2014) The reproducibility of indoor air pollution (IAP) measurement: a test case for the measurement of key air pollutants from the pan frying of fish samples. Scientific World Journal. 236501

Brown, R J C; Brown, A S (2013) Assessment of the effect of degradation by atmospheric gaseous oxidants on measured annual average benzo[a]pyrene mass concentrations. Chemosphere, 90 (2). pp. 417-422.

Baldan, A*; Ent, H*; van der Veen, A M H*; Held, A*; Ulberth-Buchgraber, M*; Daroda, R J*; da Cunha, V S*; Wise, S A*; Schantz, M*; Brewer, P J; Brown, R J C (2013) The BIOREMA project - part 1: Towards international comparability for biofuel analysis. Accred. Qual. Assur., 18 (1). pp. 19-28.

Ulberth-Buchgraber, M*; Potalivo, M*; Held, A*; Baldan, A*; van der Veen, A M H*; Ent, H*; Cunha, V S*; Daroda, R J*; Lang, B*; Schantz, M*; Hearn, R*; Brown, R J C; Brewer, P J (2013) The BIOREMA project - part 2: International interlaboratory comparison for biodiesel test methods. Accred. Qual. Assur., 18 (1). pp. 29-39.

van der Veen, A M H*; Ent, H*; Baldan, A*; da Cunha, V S*; Daroda, R J*; Lang, B*; Schantz, M*; Ulberth-Buchgraber, M*; Held, A*; Hearn, R*; Brown, R J C; Brewer, P J (2013) The BIOREMA project - part 3: International interlaboratory comparison for bio-ethanol test methods. Accred. Qual. Assur., 18 (1). pp. 41-50.

Brown, R J C (2013) Data loss from time series of pollutants in ambient air exhibiting seasonality: consequences and strategies for data prediction. Environ. Sci. - Process. Impacts, 15 (3). pp. 545-553.

Susaya, J*; Kim, K H*; Shon, Z H*; Brown, R J C (2013) Demonstration of long-term increases in tropospheric O-3 levels: causes and potential impacts. Chemosphere, 92 (11). pp. 1520-1528.

Rahman, M M*; Brown, R J C; Kim, K H*; Yoon, H O*; Phan, N T* (2013) Evaluation of the memory effect on gold-coated silica adsorption tubes used for the analysis of gaseous mercury by cold vapor atomic absorption spectrometry. Scientific World Journal. 763893

Brewer, P J; di Meane, E A; Vargha, G M; Brown, R J C; Milton, M J T (2013) Gaseous reference standards of formaldehyde from trioxane. Talanta, 108. pp. 83-87.

Brown, R J C; Harris, P M; Cox, M G (2013) Improved strategies for calculating annual averages of ambient air pollutants in cases of incomplete data coverage. Environ. Sci. - Process. Impacts, 15 (5). pp. 904-911.

Kim, K H*; Phan, N T*; Kim, Y H*; Yoon, H O*; Brown, R J C (2013) Major sources of uncertainties in the analysis of methhylmercury using gold amalgamation sampling. Anal. Methods, 5 (12). pp. 3068-3073.

Brown, R J C; Brewer, P J; Milton, M J T (2013) On the validity of acidity function extrapolation to zero added ionic strength and its impact on the uncertainty of primary pH measurements using the Harned cell. Measurement, 46 (5). pp. 1726-1733.

Kim, K H*; Yoon, H O*; Brown, R J C; Jeon, E C*; Sohn, J R*; Jung, K*; Park, C G*; Kim, I S* (2013) Simultaneous monitoring of total gaseous mercury at four urban monitoring stations in Seoul, Korea. Atmos. Res., 132. pp. 199-208.

Brown, A S; Brown, R J C; Coleman, P J*; Conolly, C*; Sweetman, A J*; Jones, K C*; Butterfield, D M; Sarantaridis, D; Donovan, B J*; Roberts, I* (2013) Twenty years of measurement of polycyclic aromatic hydrocarbons (PAHs) in UK ambient air by nationwide air quality networks. Environ. Sci. - Process. Impacts, 15 (6). pp. 1199-1215.

Brown, R J C (2013) Units and quantities for expressing the results of chemical measurement. Measurement, 46 (1). pp. 843-845.

Kim, Y H*; Kim, K H*; Yoon, H O*; Brown, R J C (2013) The application of gas chromatography-time-of-flight mass spectrometry to the analysis of monomethyl mercury at sub-picogram levels. Microchem. J., 110. pp. 107-112.

Brown, R J C; Jarvis, K E*; Disch, B A*; Goddard, S L (2013) An investigation of calibration materials for the measurement of metals in ambient particulate matter on filters by LA-ICP-MS. Int. J. Env. Anal. Chem., 93 (3). pp. 335-348.

Kim, K H*; Jahan, S A*; Kabir, E*; Brown, R J C (2013) A review of airborne polycyclic aromatic hydrocarbons (PAHs) and their human health effects. Environ. Int., 60. pp. 71-80.

Millichamp, J*; Mason, T J*; Brandon, N P*; Brown, R J C; Maher, R C*; Manos, G*; Neville, T P*; Brett, D J L* (2013) A study of carbon deposition on solid oxide fuel cell anodes using electrochemical impedance spectroscopy in combination with a high temperature crystal microbalance. J. Power Sources, 234. pp. 14-19.

Brown, R J C; Brown, A S; Kim, H* (2013) A temperature-based approach to predicting lost data from highly seasonal pollutant data sets. Environ. Sci. - Process. Impacts, 15 (6). pp. 1256-1263.

Brown, R J C; Burdon, M K*; Brown, A S; Kim, K H* (2012) Assessment of pumped mercury vapour adsorption tubes as passive samplers using a micro-exposure chamber. J. Enviorn. Monit., 14 (9). pp. 2456-2463.

Brown, R J C; Woods, P T (2012) Comparison of averaging techniques for the calculation of the 'European average exposure indicator' for particulate matter. J. Environ. Monit., 14 (1). pp. 165-171.

Brown, R J C; Gillam, T P S* (2012) Comparison of quantification strategies for one-point standard addition calibration: The heteroscedastic case. Measurement, 45 (6). pp. 1670-1673.

Brown, R J C; Gillam, T P S* (2012) Comparison of quantification strategies for one-point standard addition calibration: the homoscedastic case. Anal. Chim. Acta, 716. pp. 108-111.

Saha, S K*; Jo, S H*; Song, H N*; Brown, R J C; Kim, K H* (2012) Contrasting recovery patterns of 2, 4-dinitrophenylhydrazones (DNPH) derivative of carbonyls between liquid and gas phase standards using HPLC-based analysis. Atmos. Environ., 62. pp. 562-565.

Brown, A S; Brown, R J C (2012) Correlations in polycyclic aromatic hydrocarbon (PAH) concentrations in UK ambient air and implications for source apportionment. J. Enviorn. Monit., 14 (8). pp. 2072-2082.

Kabir, E*; Ray, S*; Kim, K-H*; Yoon, H-O*; Jeon, E-C*; Kim, Y S*; Cho, Y-S*; Yun, S-T*; Brown, R J C (2012) Current status of trace metal pollution in soils affected by industrial activities. TheScientificWorld Journal. Article ID: 916705

Brown, R J C; Kumar, Y; Brown, A S; Dexter, M A*; Corns, W T* (2012) Field comparison of manual and semi-automatic methods for the measurement of total gaseous mercury in ambient air and assessment of equivalence. J. Enviorn. Monit., 14 (2). pp. 657-665.

Brown, R J C; Gillam, T P S* (2012) On the generalised case of sequential standard addition calibration. Chemometr. Intell. Lab. Syst., 110 (1). pp. 97-101.

Brown, R J C; Brown, A S (2012) Principal component analysis as an outlier detection tool for polycyclic aromatic hydrocarbon concentrations in ambient air. Water Air Soil Pollut., 223 (7). pp. 3807-3816.

Kodiyath, R*; Papadopoulos, T A*; Wang, J; Combs, Z A*; Li, H*; Brown, R J C; Bredas, J L*; Tsukruk, V V* (2012) Silver-decorated cylindrical nanopores: Combining the third dimension with chemical enhancement for efficient trace chemical detection with SERS. J. Phys. Chem. C, 116 (26). pp. 13917-13927.

Kim, K-H*; Ho, D X*; Brown, R J C; Oh, J-M*; Park, C G*; Ryu, I C* (2012) Some insights into the relationship between urban air pollution and noise levels. Sci. Total Environ., 424. pp. 271-279.

Brewer, P J; Leese, R J*; Brown, R J C (2012) An improved approach for fabricating Ag/AgCl reference electrodes. Electrochim. Acta, 71. pp. 252-257.

Kim, K H*; Yoon, H O*; Jung, M C*; Oh, J M*; Brown, R J C (2012) A simple approach for measuring emission patterns of vapor phase mercury under temperature-controlled conditions from soil. Scientific World Journal, 2012. 940413

Millichamp, J*; Ali, E*; Brandon, N P*; Brown, R J C; Hodgson, D*; Kalyvas, C*; Manos, G*; Brett, D J L* (2011) Application of a GaPO4 crystal microbalance for the detection of coke formation in high temperature reactors and solid oxide fuel cells. Indust. Eng. Chem. Res., 50 (13). pp. 8371-8375.

Brown, R J C (2011) Comment on 'Recommendations on quantities, symbols and measurement units for publications in ACQUAL: preparation of tables and graphs'. Accred. Qual. Assur., 16 (4-5). pp. 271-272.

Brown, R J C (2011) Comparison of the extrapolation precision of sequential and conventional standard addition calibrations. Measurement, 44 (8). pp. 1487-1490.

Kim, K-H*; Brown, R J C (2011) Emerging measurement techniques for airborne pollutants. TheScientificWorld Journal, 11. pp. 2599-2601.

Brown, R J C; Goddard, S L; Blakley, K C; Brown, A S (2011) Improvements to standard methodologies for the analytical determination of metals in stationary source emissions samples. J. Air Waste Manage. Assoc., 61. pp. 764-770.

Stoica, D*; Brewer, P J; Brown, R J C; Fisicaro, P* (2011) Influence of fabrication procedure on the electrochemical performance of Ag/AgCl reference electrodes. Electrochim. Acta, 56 (27). pp. 10009-10015.

Gerboles, M*; Buzica, D*; Brown, R J C; Yardley, R E; Hanus-Illnar, A*; Salfinger, M*; Vallant, B*; Adriaenssens, E*; Claeys, N*; Roekens, E*; Sega, K*; Jurasovic, J*; Rychlik, S*; Rabinak, E*; Tanet, G*; Passarella, R*; Pedroni, V*; Karlsson, V*; Alleman, L*; Pfeffer, U*; Gladtke, D*; Olschewski, A*; O'Leary, B*; O'Dwyer, M*; Pockeviciute, D*; Biel-Cwikowska, J*; Tursic, J* (2011) Interlaboratory comparison exercise for the determination of As, Cd, Ni and Pb in PM10 in Europe. Atmos. Environ., 45 (20). pp. 3488-3499.

Stosch, R*; Yaghobian, F*; Weimann, T*; Brown, R J C; Milton, M J T; Guttler, B* (2011) Lithographical gap-size engineered nanoarrays for surface-enhanced Raman probing of biomarkers. Nanotechnology, 22 (10). 105303

Pandey, S K*; Kim, K-H*; Brown, R J C (2011) Measurement techniques for mercury species in ambient air. Trends in Analytical Chemistry, 30 (6). pp. 899-917.

Brown, R J C; Kumar, Y*; Brown, A S; Kim, K-H* (2011) Memory effects on adsorption tubes for mercury vapour measurement in ambient air: elucidation, quantification and strategies for mitigation of analytical bias. Environ. Sci. Technol., 45 (11). pp. 7812-7818.

Brown, R J C; Keates, A C*; Brown, A S (2011) Optimised determinations of water in ethanol by encoded photometric near-infrared spectroscopy: a special case of sequential standard addition calibration. Anal. Chim. Acta, 690 (1). pp. 47-52.

Kodiyath, R*; Wang, J; Combs, Z A*; Chang, S*; Gupta, M K*; Anderson, K D*; Brown, R J C; Tsukruk, V V* (2011) SERS effects in silver-decorated cylindrical nanopores. Small, 7 (24). pp. 3452-3457.

Brewer, P J; Stoica, D*; Brown, R J C (2011) Sensitivities of key parameters in the preparation of silver / silver chloride electrodes used in harned cell measurements of pH. Sensors, 11 (8). pp. 8072-8084.

Brown, R J C; Keates, A C* (2011) Spatial inhomogeneity of anions in ambient particulate matter collected on air filters: determination using a drift-corrected ion chromatography technique. Talanta, 84 (3). pp. 918-923.

Brown, R J C; Muhunthan, D (2011) Uncertainty-weighted time averaging of mercury vapour concentrations in ambient air: application to measurements in the United Kingdom. TheScientificWorld Journal, 11 (Februa). pp. 242-252.

Kim, K-H*; Pandey, S K*; Kabir, E*; Susaya, J*; Brown, R J C (2011) The modern paradox of unregulated cooking activities and indoor air quality. J. Hazard. Mater., 195. pp. 1-10.

Pandey, S K*; Kim, K-H*; Brown, R J C (2011) A review of techniques for the determination of polycyclic aromatic hydrocarbons in air. TRAC Trends Anal. Chem., 30 (11). pp. 1716-1739.

Kim, K-H*; Susaya, J*; Sohn, J R*; Brown, R J C (2011) A study of relative performance between direct injection and thermal desorption for several volatile organic acids and reference VOCs by gas chromatography-mass spectrometry. Fresenius Environ. Bull., 20 (11). pp. 2875-2882.

Seitz, S*; Spitzer, P*; Brown, R J C (2010) CCQM-P111 study on traceable determination of practical salinity and mass fraction of major seawater components. Accred. Qual. Assur., 15 (1). pp. 9-17.

Brown, R J C; Jarvis, K E*; Disch, B A*; Goddard, S L; Adriaenssens, E*; Claeye, N* (2010) Comparison of ED-XRF and LA-ICP-MS with the European reference method for the measurements of metals in ambient particulate matter. Accred. Qual. Assur., 15 (9). pp. 493-502.

Brown, R J C (2010) Comparison of estimated annual emissions and measured annual ambient concentrations of metals in the United Kingdom 1980-2007. J. Enviorn. Monit., 12 (3). pp. 665-671.

Brewer, P J; Brown, R J C (2010) Effect of silver annealing conditions on the performance of electrolytic silver/silver chloride electrodes used in harned cell measurements of pH. Sensors, 10 (3). pp. 2202-2216.

Dumarey, R*; Brown, R J C; Corns, W T*; Brown, A S; Stockwell, P B* (2010) Elemental mercury vapour in air: the origins of the 'Dumarey equation' describing the saturated mass concentration. Accred. Qual. Assur., 15 (7). pp. 409-414.

Brewer, P J; Goody, B A; Gillam, T*; Brown, R J C; Milton, M J T (2010) High-accuracy stable gas flow dilution using a self-calibrating network of critical flow orifices. Meas. Sci. Technol., 21 (11). 115902

Brown, R J C (2010) Novel method for producing uncertainty-weighted averages from a time series of ambient air measurements. Int. J. Enviorn. Pollut., 41 (3-4). pp. 355-368.

Brown, R J C; Keates, A C*; Brewer, P J (2010) Sensitivities of a standard test method for the determination of the pHe of bioethanol and suggestions for improvement. Sensors, 10 (11). pp. 9982-9993.

Brown, R J C; Pirrone, N*; van Hoek, C*; Horvat, M*; Kotnik, J*; Wangberg, I*; Corns, W T*; Bieber, E*; Sprovieri, F* (2010) Standardisation of a European measurement method for the determination of mercury in deposition: results of the field trial campaign and determination of a measurement uncertainty and working range. Accred. Qual. Assur., 15 (6). pp. 359-366.

Brown, R J C; Pirrone, N*; van Hoek, C*; Sprovieri, R*; Fernandez, R*; Tote, K* (2010) Standardisation of a European measurement method for the determination of total gaseous mercury: results of the field trial campaign and determination of a measurement uncertainty and working range. J. Enviorn. Monit., 12 (3). pp. 689-695.

Brown, R J C; Wang, J; Brown, A S (2010) Temperature propagation through a mercury vapour calibration source and assessment of possible analytical biases caused by measurement of temperature variations. Measurement, 43 (9). pp. 1291-1298.

Brown, R J C; Goddard, S L; Brown, A S (2010) Using principal component analysis to detect outliers in ambient air monitoring studies. Int. J. Env. Anal. Chem., 90 (10). pp. 761-772.

Brown, A S; Brown, R J C; Dexter, M A*; Corns, W T*; Stockwell, P B* (2010) A novel automatic method for the measurement of mercury vapour in ambient air, and comparison of uncertainty with established semi-automatic and manual methods. Anal. Methods, 2 (7). pp. 954-966.

Corns, W T*; Stockwell, P B*; Brown, R J C; Brown, A S (2009) Determination of total mercury in ambient air using amalgamation with atomic fluorescence spectrometry. Int. Enviorn. Technol., 19 (5). pp. 26-27.

Brewer, P J; Brown, R J C (2009) Effect of structural design of silver/silver chloride electrodes on stability and response time and the implications for improved accuracy in pH measurement. Sensors, 9 (1). pp. 118-130.

Brown, R J C (2009) Explaining the distinction between accuracy and reliability in scientific measurement. School Science Review, 91 (335). pp. 24-28.

Brown, R J C; Brewer, P J; Brett, D J L* (2009) Long-term equilibrium potential and electrochemical impedance study of Ag/AgCl electrodes used in Harned Cell measurements of pH. Accred. Qual. Assur., 14 (3). pp. 139-145.

Brown, R J C; Edwards, P R* (2009) Measurement of anions in ambient particulate matter by ion chromatography: a novel sample preparation technique and development of a generic uncertainty budget. Talanta, 80 (2). pp. 1020-1024.

Brown, R J C; Brett, D J L* (2009) Microelectrode voltammetry as a high accuracy method for in-situ diffusion coefficient determination. Microchimica Acta, 164 (3-4). pp. 337-344.

Brown, R J C (2009) Recent changes to the monitoring of ambient heavy metals in the UK. AWE International Magazine, 18. pp. 36-41.

Brown, R J C; Jarvis, K E*; Disch, B A*; Goddard, S L; Brown, A S (2009) Spatial inhomogeneity of metals in particulate matter on ambient air filters determined by LA-ICP-MS and comparison with acid digestion ICP-MS. J. Enviorn. Monit., 11 (11). pp. 2022-2029.

Brown, R J C; Roberts, M R*; Brett, D J L* (2009) Stripping voltammetry using sequential standard addition calibration with the analytes themselves acting as internal standards. Anal. Chim. Acta, 635 (1). pp. 1-5.

Brown, R J C (2009) Systematic error arising from 'sequential' standard addition calibrations. 2: Determination of analyte mass fraction in blank solutions. Anal. Chim. Acta, 648 (2). pp. 153-156.

Brown, R J C; Brett, D J L*; Kucernak, A R J* (2009) An electrochemical quartz crystal microbalance study of platinum phthalocyanine thin films. J. Electroanal. Chem., 633 (2). pp. 339-346.

Brown, R J C (2009) The rise of environmental analytical chemistry as an inter disciplinary activity. The Scientific World Journal, 9. pp. 536-538.

Brown, R J C (2009) A simple method for excluding self-citation from the h-index: the b-index. Online Information Review, 33 (6). pp. 1129-1136.

Brown, R J C; Brown, A S; Corns, W T*; Stockwell, P B* (2008) Accurate calibration of mercury vapour indicators for occupational exposure measurements using a dynamic mercury vapour generator. Instrum. Sci. Technol., 36 (6). pp. 611-622.

Brown, R J C; Brown, A S (2008) Accurate calibration of mercury vapour measurements. Analyst, 133 (11). pp. 1611-1618.

Spitzer, P*; Seitz, S*; Brown, R J C (2008) Consistency of practical salinity measurement traced to primary conductivity standards: EUROMET project 918. Accred. Qual. Assur., 13 (10). pp. 601-605.

Brown, A S; Brown, R J C; Corns, W T*; Stockwell, P B* (2008) Establishing SI traceability for measurements of mercury vapour. Analyst, 133 (7). pp. 946-953.

Brown, R J C; Milton, M J T (2008) Nanostructures and nanostructured substrates for surface-enhanced Raman Spectroscopy (SERS). J. Raman Spectrosc., 39 (10). pp. 1313-1326.

Brown, R J C; Hood, D*; Brown, A S (2008) On the optimum sampling time for the measurement of pollutants in ambient atmospheres. Journal of Automated Methods and Management in Chemistry. Article ID: 814715

Brown, R J C (2008) Quantities and units in analytical chemistry. Int. J. Env. Anal. Chem., 88 (10). pp. 681-687.

Roy, D; Angeles-Tactay, E*; Brown, R J C; Spencer, S J; Fry, T; Dunton, T A; Young, T*; Milton, M J T (2008) Synthesis and Raman spectroscopic characterisation of carbon nanoscrolls. Chem. Phys. Lett., 465 (4-6). pp. 254-257.

Brown, R J C; Yardley, R E; Muhunthan, D; Butterfield, D M; Williams, M; Woods, P T; Brown, A S; Goddard, S L (2008) Twenty-five years of nationwide ambient metals measurement in the United Kingdom: concentration levels and trends. Environ. Monit. Assess., 142 (1-3). pp. 127-140.

Brown, R J C; Goddard, S L; Brown, A S; Yardley, R E (2008) The effect of isotopic composition on the uncertainty of routine metal mass concentration measurements in ambient air. J. Auto. Methods Manage. Chem.. 504092

Tantra, R; Brown, R J C; Milton, M J T; Gohil, D D (2008) A practical method to fabricate gold substrates for surface-enhanced raman spectroscopy. Appl. Spectrosc., 62 (9). pp. 992-1000.

Brown, R J C; Brown, A S; Yardley, R E; Corns, W T*, Stockwell (2008) A practical uncertainty budget for ambient mercury vapour measurement. Atmos. Environ., 42 (10). pp. 2504-2517.

Brown, A S; Brown, R J C (2008) A study of the critical uncertainty contributions in the analysis of PCBs in ambient air. Journal of Automated Methods and Management in Chemistry, 2008. 179498

Brown, R J C (2008) The use and abuse of limits of detection in environmental analytical chemistry. The Scientific World Journal, 8. pp. 796-801.

Brown, R J C (2007) Double anonymity in peer review within the chemistry periodicals community. Learned Publishing, 20. pp. 131-137.

Brown, R J C; Wang, J; Milton, M J T (2007) Electromagnetic modelling of Raman enhancement from nanoscale structures as a means to predict the efficacy of SERS substrates. Journal of Nanomaterials. Article ID: 12086

Brown, R J C (2007) Errors in the Analysis of Minor Components within Environmental Samples Caused by the Physical Matrix Effect: Implications for Automated Analysis and Standardised Methods. J. Liquid Chromatography & Related Technologies, 30 (16). pp. 2445-2457.

Brown, R J C (2007) Heavy metals monitoring: observations on concentration levels and trends over 25 years. AWE International Magazine, 12. pp. 25-31.

Brown, R J C; Krishnadasan, S*; deMello, A J*; deMello, J C* (2007) Intelligent routes to the controlled synthesis of nanoparticles. Lab on a Chip, 7 (11). pp. 1434-1441.

Brown, R J C; Milton, M J T (2007) New developments in accurate and traceable chemical measurements. Chemical Society Reviews, 36 (6). pp. 904-913.

Tantra, R; Brown, R J C; Milton, M J T (2007) Strategy to improve the reproducibility of colloidal SERS. J. Raman Spectrosc., 38 (11). pp. 1469-1479.

Brown, R J C; Milton, M J T (2007) Stripping voltammetry as a possible primary method for amount of substance. IEEE Trans. Instrum. Meas., 56 (2). pp. 280-283.

Brown, R J C; Roberts, M R; Milton, M J T (2007) Systematic error arising from 'sequential' standard addition calibrations: quantification and correction. Anal. Chim. Acta, 587. pp. 158-163.

Brown, A S; Brown, R J C; Robinson, R A (2007) A novel calibration procedure for trace analytical measurements: application to the analysis of polybrominated diphenyl ethers by GC-MS. Analyst, 132 (9). pp. 922-928.

Brown, R J C (2007) The use of Zipf's law in the screening of analytical data: a step beyond Benford. Analyst, 132 (4). pp. 344-349.

Brown, R J C; Yardley, R E; Brown, A S; Edwards, P R; Rivier, C*; Yardin, C* (2006) Analytical methodologies with very low blank levels: implications for practical and empirical evaluations of the limit of detection. Analytical Letters, 39 (6). pp. 1229-1241.

Brown, R J C (2006) Double anonymity and the peer review process. The Scientific World (6). pp. 1274-1277.

Brown, R J C; Brett, D J L* (2006) Electrochemical study of biotin-modified self-assembled monolayers: recommendations for robust preparation. The Scientific World Journal, 6. pp. 20-29.

Brown, R J C; Wang, J; Tantra, R; Yardley, R E; Milton, M J T (2006) Electromagnetic modelling of Raman enhancement from nanoscale substrates: a route to estimation of the magnitude of the chemical enhancement mechanism in SERS. Faraday Discuss., 132. pp. 201-213.

Tantra, R; Brown, R J C; Milton, M J T; Wang, J (2006) Improving the reproducibility of surface enhanced Raman spectroscopy (SERS). VAM Bulletin, 35. pp. 27-30.

Brown, R J C; Shaw, M C*; Roberts, M R* (2006) Practical methodology for the solubility speciation analysis of ambient dust deposits for heavy metals: application to a 6-month measurement campaign. Int. J. Environ. Anal. Chem., 86 (6). pp. 453-460.

Brown, R J C (2006) To know or not to know. Chemistry and Industry (5). p. 17.

Brown, R J C (2006) To know or not to know: the process of peer review for submissions to scientific journals. Electrochemistry Newsletter, 113 (April). pp. 8-10.

Brown, R J C (2006) A breath of fresh air.

Brown, R J C; Edwards, P R* (2006) The effect of the physical matrix on accurate measurements using fixed volume analytical techniques. Journal of Separation Science, 29 (13). pp. 2072-2077.

Brown, R J C (2006) The reviewer's role. Chemistry and Industry (4). p. 17.

Brown, R J C (2006) The risk of meeting a hazard. School Science Review, 88 (322). p. 17.

Brown, R J C; Milton, M J T (2005) Analytical techniques for trace element analysis: an overview. Trends in Analytical Chemistry, 24 (3). pp. 266-274.

Brown, R J C (2005) Atmospheric ambiguity. Chemistry World, 2 (12). p. 27.

Brown, R J C (2005) Benford's law and the screening of analytical data: the case of pollutant concentrations in ambient air. Analyst, 130. pp. 1280-1285.

Brown, R J C; Woods, P T (2005) CEN and air quality standards in Europe. VAM Bulletin, 33. pp. 13-15.

Brown, R J C (2005) Heavy metals monitoring network aids UK meet 'target values'. Local Authority Waste and Environment, 13 (9). p. 28.

Brown, R J C (2005) Monitoring ambient metals: UK response to fourth daughter directive. Network: The newsletter for the UK Air Quality Monitoring Network (9). pp. 1-2.

Brown, R J C; Taylor, A G* (2005) Optical second harmonic generation at platinum phthalocyanine-modified platinum electrodes. Thin Solid Films, 476 (2). pp. 373-378.

Maher, R C*; Hou, J*; Cohen, L F*; Le Ru, E C*; Hadfield, J M*; Harvey, J E*; Etchegoin, P G*; Liu, FM*; Green, M*; Brown, R J C; Milton, M J T (2005) Resonance contributions to anti-Stokes/Stokes ratios under surface enhanced Raman scattering conditions. J. Chem. Phys., 123. 084702

Brown, R J C; Milton, M J T (2005) The microporpos structure of silver/silver chloride electrodes and the implications for Harned cell operation. Accred. Qual. Assur., 10 (7). pp. 352-355.

Brown, R J C; Kucernak, A R* (2005) The photelectrochemistry of platinum phthalocyanine films in aqueous media. J. Solid State Electrochem., 9 (6). pp. 459-468.

Brown, R J C (2005) The use of double anonymity in peer review: a decision whose time has come? Quality Assurance: Good Practice, Regulation and Law, 11 (2-4). pp. 103-109.

Etchegoin, P*; Cohen, L F*; Hartigan, H; Brown, R J C; Milton, M J T; Gallop, J C (2004) Localized plasmon resonances in inhomogeneous metallic nanoclusters. Chem. Phys. Lett., 383. pp. 577-583.

Maher, R C*; Dalley, M*; Le Ru, E C*; Cohen, L F*; Etchegoin, P G*; Hartigan, H; Brown, R J C; Milton, M J T (2004) Physics of single molecule fluctuations in surface enhanced Raman spectroscopy active liquids. J. Chem. Phys., 121 (18). pp. 8901-8910.

Brown, R J C; Yardley, R E; Brown, A S; Milton, M J T (2004) Sample matrix and critical interference effects on the recovery and accuracy of concentration measurements of arsenic in ambient particulate samples using Inductive Coupled Plasma Mass Spectrometry (ICP-MS). Journal of Analytical Atomic Spectroscopy, 19. pp. 703-705.

Brown, R J C (2004) Spectacular spectroscopy - surface enhanced Raman spectroscopy. Laboratory News (Novemb). pp. 28-29.

Brown, R J C; Long, N J*; Mongay-Batalla, C* (2004) Spectroscopic and electrochemical studies on platinum and palladium phthalocyanines. New. J. Chem., 28 (6). pp. 676-680.

Maher, R C*; Cohen, L F*; Etchegoin, P*; Hartigan, H J N; Brown, R J C; Milton, M J T (2004) Stokes/anti-stokes anomalies under surface enhanced Raman scattering conditions. J. Chem. Phys., 120 (24). pp. 11746-11753.

Etchegoin, P*; Cohen, L F*; Hartigan, H; Brown, R J C; Milton, M J T; Gallop, J C (2003) Electromagnetic contribution to surface enhanced Raman scattering revisited. J. Chem. Phys., 119 (10). pp. 5281-5289.

Etchegoin, P*; Maher, R C*; Cohen, L F*; Hartigan, H; Brown, R J C; Milton, M J T; Gallop, J C (2003) New limits in ultrasensitive trace detection by surface enhanced Raman scattering (SERS). Chem. Phys. Lett., 375 (1-2). pp. 84-90.

Brown, R J C; Milton, M J T (2003) Observation of a combined diluted and salting effect in buffers under conditions of high dilution and high ionic strength. Accred. Qual. Assur., 8 (11). pp. 505-510.

Etchegoin, P*; Liem, H*; Maher, R C*; Cohan, L F*; Brown, R J C; Milton, M J T; Gallop, J C (2003) Observation of dynamic oxygen release in hemoglobin using surface Raman scattering. Chem. Phys. Lett., 367 (1-2). pp. 223-229.

Etchegoin, P*; Liem, H*; Maher, R C*; Cohen, L F*; Brown, R J C; Hartigan, H; Milton, M J T; Gallop, J C (2002) A novel amplification mechanism for surface enhanced Raman scattering. Chem. Phys. Lett., 366 (1-2). pp. 115-121.

Brown, R J C; Brewer, P; Milton, M J T (2002) The physical and chemical properties of electroless nickel phosphorus alloys and low reflectance nickel phosphorus black surfaces. Journal of Materials Chemistry, 12 (9). pp. 2749-2754.

Brown, R J C; Dyson, P J*; Ellis, D J*; Welton, T* (2001) 1-Butyl-3-methylimidazolium cobolt tetracarbonyl [bmin][Co(CO)4]: a catalytically active organometallic ion liquid. Chem. Commun.. pp. 1862-1863.

Brown, R J C; Kucernak, A R* (2001) The electrochemistry of platinum phthalocyanine microcrystals - electrochemical behaviour in aqueous electrolytes. Electrochimica Acta, 46. pp. 2573-2582.

Conference or Workshop Item

Tantra, R; Brown, R J C; Milton, M J T (2007) Using principal component analysis in the evaluation of SERS-active substrates. In: Abstract Book of Colloquium Spectroscopicum Internationale XXXV, 2007, Xiamen, China.

Brown, R J C; Milton, M J T (2006) Stripping voltammetry as a possible primary method for amount of substance. In: CPEM 2006 Conference on Precision Electromagnetic Measurements, 9-14 July 2006, Torino, Italy.