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Evaluation of sulfur chemiluminescence detection in supercritical fluid chromatography

1990; Wiley; Volume: 2; Issue: 6 Linguagem: Inglês

10.1002/mcs.1220020604

1520-667X

Lars A. Pekay, Susan V. Olesik,

Analytical chemistry methods development

Abstract The sulfur chemiluminescence detector was optimized for the analysis of organosulfur compounds by supercritical fluid chromatography. The flame gases used in this study were hydrogen and air. The highest sensitivity was found when a fuel‐rich flame was used. The noise characteristics of the detector were determined. Flicker noise is the primary source of noise in this detector when analyte is present. The linear dynamic range of the detector under supercritical fluid chromatography conditions was typically three orders of magnitude. For the optimum flame gas conditions, the detection limits for two‐and three‐ring organosulfur compounds were 10–1400 pg injected. The detection of sulfur in high molecular‐weight polymers was also demonstrated.