大口径毛细管气相色谱法测定巯基乙酸异辛酯

Determination of Isooctyl Mercaptoacetate Using GC with Wide-Bore Capillary Column

研究了以HP -1大口径毛细管分离 ,不分流进样 ,气相色谱法测定巯基乙酸异辛酯的分析方法 ,确定了最佳色谱条件。该方法具有操作简单、快速、准确、重现性好等优点。方法的加标回收率在 98 1%～ 10 1 4% ,相对标准偏差Rsd为 0 87%。

A rapid and high performance gas-chromatographic method for the determination of Isooctyl Mercaptoacetate(TGE) has been developed. Ethyl Benzoate was used as the internal standard.Gas-chromatographic analysis was made by using HP-1 wide-bore capillary column and FID detector. Temperature Programming was run from 180℃ to 260℃;the flow rate of N 2 carrier gas was 40mL/min.All components and internal standard were separated in 13mins. The method is simple,rapid and accurate. The results with good linearity (r=0 998 3) had been obtained,and coefficient of variation was 0 87%.The recoveries of the method were 98 1%-101 4%.