View in EDS

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

Saved in:
Bibliographic Details
Title: An investigation of the matrix sensitivity of refinery gas analysis using gas chromatography with flame ionisation detection.
Authors: Ferracci, Valerio1 valerio.ferracci@npl.co.uk, Brown, Andrew S.1, Harris, Peter M.1, Brown, Richard J.C.1
Source: Journal of Chromatography A. Feb2015, Vol. 1383, p144-150. 7p.
Subjects: Gas analysis, Petroleum refineries, Gas chromatography, Flame ionization detectors, Metric system, Sensitivity analysis
Abstract: The response of a flame ionisation detector (FID) on a gas chromatograph to methane, ethane, propane, i -butane and n -butane in a series of multi-component refinery gas standards was investigated to assess the matrix sensitivity of the instrument. High-accuracy synthetic gas standards, traceable to the International System of Units, were used to minimise uncertainties. The instrument response exhibited a small dependence on the component amount fraction: this behaviour, consistent with that of another FID, was thoroughly characterised over a wide range of component amount fractions and was shown to introduce a negligible bias in the analysis of refinery gas samples, provided a suitable reference standard is employed. No significant effects of the molar volume, density and viscosity of the gas mixtures on the instrument response were observed, indicating that the FID is suitable for the analysis of refinery gas mixtures over a wide range of component amount fractions provided that appropriate drift-correction procedures are employed. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Chromatography A is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
Description
Abstract:The response of a flame ionisation detector (FID) on a gas chromatograph to methane, ethane, propane, i -butane and n -butane in a series of multi-component refinery gas standards was investigated to assess the matrix sensitivity of the instrument. High-accuracy synthetic gas standards, traceable to the International System of Units, were used to minimise uncertainties. The instrument response exhibited a small dependence on the component amount fraction: this behaviour, consistent with that of another FID, was thoroughly characterised over a wide range of component amount fractions and was shown to introduce a negligible bias in the analysis of refinery gas samples, provided a suitable reference standard is employed. No significant effects of the molar volume, density and viscosity of the gas mixtures on the instrument response were observed, indicating that the FID is suitable for the analysis of refinery gas mixtures over a wide range of component amount fractions provided that appropriate drift-correction procedures are employed. [ABSTRACT FROM AUTHOR]
ISSN:00219673
DOI:10.1016/j.chroma.2015.01.030