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An investigation of the matrix sensitivity of refinery gas analysis using gas chromatography with flame ionisation detection.

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

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Abstract

The response of a flame ionisation detector (FID) to methane, ethane, propane, i-butane and n-butane in a series of multi-component synthetic gas mixtures was analysed to investigate a possible matrix sensitivity. The analysis of the results showed a significant impact of changes in atmospheric pressure and detector drift on the instrument response: a procedure to account for these effects was devised and its use is recommended for future work performed on the instrument. A dependence of the instrument response on the component amount fraction was observed but this was not inconsistent with the results from other FIDs. No significant effects of four selected physical properties of the gas (molar weight, molar volume, density, viscosity) on the instrument response were observed.

Item Type: Report/Guide (NPL Report)
NPL Report No.: AS 82
Subjects: Analytical Science
Analytical Science > Gas Standards
Last Modified: 02 Feb 2018 13:14
URI: http://eprintspublications.npl.co.uk/id/eprint/5988

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