Analysis of Thiophene in Benzene: Comparison of FPD(S) and SCD Analyses

The detectors chosen for trace analysis of sulfur compounds using gas chromatography are Flame Photometric Detector (FPD(S)) and Sulfur Chemiluminescence Detector (SCD) which offer highly sensitive and selective detection. These detectors have different detection characteristics for sulfur compounds because of their difference in the principles of detection. In this article, we measured results with FPD and SCD, and compared them to Flame Ionization Detector (FID), which is a general-purpose detector, using thiophene in benzene as an example and described the differences between FPD and SCD.