Specific Features of the Gas-Chromatographic Determination of the Reaction Products in the Catalytic Decomposition
of Hydrogen Sulfide
Journal of Analytical Chemistry
, E-ISSN: 1608-3199
Boreskov Institute of Catalysis, Siberian Division, Russian Academy of Sciences, pr. Akademika Lavrent’eva 5, Novosibirsk, 630090 Russia
Institute of Semiconductor Physics, Siberian Division, Russian Academy of Sciences, pr. Pirogova 30, Novosibirsk, 630090 Russia
Specific features of the determination of hydrogen sulfide in the presence of hydrogen were studied by gas chromatography with the use of a thermal conductivity detector and argon as the carrier gas. A chromatographic column with HayeSep A modified with 10 wt % H3PO4 was proposed for the simultaneous determination of both components. It was demonstrated that the elution curve of hydrogen sulfide in an argon atmosphere has a non-Gaussian shape because of the interaction of hydrogen sulfide with the tungsten filament of the sensing element of the catarometer. To eliminate this interaction, it was recommended that a gold-plated tungsten filament be used in the detector.