气相色谱法测定丙烯中微量烃类杂质进样方法探讨  

Study on sampling methods for gas chromatographic determination of trace ethylene in propylene.

作　　者：杨传安[1] 张为民[1] 仵春祺[1] 乃学惠[1] 

机构地区：[1]中国石油独山子石化公司乙烯厂中心化验室,独山子833600

出　　处：《分析仪器》2008年第4期60-62,共3页Analytical Instrumentation

摘　　要：通过对不锈钢进样钢瓶两端进样方法的实验对比,研究了气相色谱法测定丙烯中微量烃类杂质时不同进样方法的优缺点。结果表明,进样钢瓶带不锈钢软管一端向下进样是最佳进样方法,所得数据精密度较高、重复性好。Different sampling methods for gas chromatographic determination of trace ethylene in propylene were studied comparatively. The results showed that the best sampling method was to let the end （with a stainless steel hose） of the sampling cylinder downward. With this method, the data obtained was more precise and had good reproducibility.

关 键 词：气相色谱法 进样方法 进样钢瓶 丙烯 烃类杂质 

分 类 号：TQ221[化学工程—有机化工]