摘要
建立一种气相色谱法分析烃中痕量异辛醇含量的方法,采用聚乙二醇二万(PEG-20M)30 m×0.53 mm大口径石英毛细管柱。不分流进样,外标法测定烃中异辛醇。实验结果表明,所建立的方法相对误差小于0.6%,标准偏差小于0.3%。完全能满足工艺上测定混合烃中异辛醇含量的要求。
A trace analysis method of 2-ethyl hexanol in hydrocarbons with gas chromatogram was established in this article. Length of the capillary column was 30 m, the calibre of 0.53 mm, polyethylene glycol of molecular weight at 20 000 packed, splitless injecting samples, the 2-ethyl hexanol to be determined by external standard method of gas chromatogram. The results showed that the relative error was less than 0.6 %, the standard deviation, less than 0.3%; the method can meet the requirements of determining 2-ethyl hexanol content in hydrocarbons.
出处
《石化技术》
CAS
2008年第1期14-16,共3页
Petrochemical Industry Technology
关键词
色谱分析法
异辛醇
外标法
gas chromatography, 2-ethyl hexanol, external standard method
