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Study of the responses of a gas chromatography—reduction gas detector system to gaseous hydrocarbons under different conditions.

Cao, Xu-Liang and Hewitt, C. N. and Waterhouse, K. S. (1995) Study of the responses of a gas chromatography—reduction gas detector system to gaseous hydrocarbons under different conditions. Analytica Chimica Acta, 300 (1-3). pp. 193-200.

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Abstract

The response of a reduction gas detector (RGD) to C2-C6 alkenes, C2-C6 alkanes, isoprene and benzene has been investigated using gas chromatography (GC) with a packed column. The RGD is considerably more sensitive to alkenes than is the flame ionization detector. The detection limit of this present GC/RGD system for alkenes is about 0.01 ng. It has much greater sensitivity to alkenes than to alkanes. Its sensitivity increases with increasing HgO bed temperature, but its selectivity towards alkenes decreases at the same time. The selectivity of the RGD may not be significant for much heavier molecules. The sensitivity of the RGD is inversely proportional to the carrier gas flow rate through the HgO bed. The baseline of the system increases significantly with increasing oven temperature.

Item Type: Article
Journal or Publication Title: Analytica Chimica Acta
Uncontrolled Keywords: Gas chromatography ; Reduction gas detector
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
Departments: Faculty of Science and Technology > Lancaster Environment Centre
ID Code: 22247
Deposited By: ep_ss_importer
Deposited On: 10 Feb 2009 15:07
Refereed?: Yes
Published?: Published
Last Modified: 26 Jul 2012 15:58
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/22247

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