建立了采用火焰光度检测器、气相色谱仪的方法,进行天然气中有机硫化合物的定性及定量分析。检测器对硫的敏感度优于2×10~（-12）gS/s,可测出天然气中0.01—0.1ppm的各种沸点低于100℃的硫化物。给出了十二种硫化物在沙鱼烷、苯二甲酸二壬酯、磷酸三甲苯酯及亚氨基二丙腈四种柱子上的相对保留值。进行了四川地区三种不同类型天然气中有机硫化物的全分析,与其他方法相比较,结果是满意的。 The method of flame photometric detector and gas chromatograph was established to qualitatively and quantitatively analyze organosulfur compounds in natural gas. The sensitivity of the detector to sulfur is better than 2 × 10 ~ (-12) gS / s, which can measure 0.01-0.1ppm of various sulfides with boiling points less than 100 ℃ in natural gas. The relative retention of twelve sulfides on four columns of safranine, dinonyl phthalate, tricresyl phosphate, and iminodiacetonitrile was given. The full analysis of organic sulfides in three different types of natural gas in Sichuan Province was carried out. Compared with other methods, the results were satisfactory.