Analysis of Both Sulfur and Non-Sulfur Compounds ...

Published: Journal of Chromatographic Science, Volume 36, Number 12, December 1998, pp. 605-613.

Analysis of Both Sulfur and Non-Sulfur Compounds Using a Single Gas Chromatograph with Parallel Sulfur Chemiluminescence and Thermal Conductivity Detectors
Hui Wang, Qinglin Zhang, Ivo G. Dalla Lana, and Karl T. Chuang

Sulfur chemiluminescence detectoion (SCD) allows precise measurements of sulfur-containing molecules down to ppb levels. Because SCD ignores the presence of compounds other than those containing sulfur, a complete analysis of such gas mixtures is not possible using SCD alone. This paper describes how the coupling of sulfur chemiluminescence and thermal conductivity detectors in parallel within a single gas chromatograph enables the determination of concentrations of both sulfur-containing and other gaseous compounds through simultaneous sampling, separation, and detection. The method extends the range of a single instrument for detecting sulfur-containing compounds from percentage to ppb levels.

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