气相色谱法测定化妆品中三乙醇胺的含量  

Determination of content of Triethanolamine in different cosmetics by gas chromatography

作　　者：吴剑霞[1] 张丽[1] 张露[1] 熊飞[1] 李辉容[1] 边清泉[1] 

机构地区：[1]绵阳师范学院化学与化学工程学院,四川绵阳621000

出　　处：《绵阳师范学院学报》2011年第2期61-63,共3页Journal of Mianyang Teachers＇ College

基　　金：绵阳市科技局自然科学研究重点项目(10Y002-11);四川省教育厅自然科学研究项目(09ZC019)

摘　　要：建立化妆品中三乙醇胺含量的气相色谱检测方法。采用聚甲基硅橡胶毛细管柱,氢火焰离子化检测器(FID),程序升温,无水乙醇为溶剂,对不同化妆品中三乙醇胺进行分离并测定其含量。对色谱柱、柱温、溶剂、升温方式等色谱条件的选择进行实验。利用保留时间定性,用外标法定量。在选择的最佳色谱条件下,测得标准曲线在0-20 mg/L线性关系良好,r=0.9993,检出限为0.0016 mg/L,加标回收率在99.0%-104.2%。RSD为2.2%,该方法操作简便、快速、灵敏,重现性好,适合化妆品中三乙醇胺的质量分析。A GC method was established for the determination of the triethanolamine（TEA）content from different cosmetics.A polymethyl silicone column was used with temperature programming to separate,and to detect the content by using Hydrogen flame ionization（FID） as the detector and anhydrous ethanol as the resolver.To make a choice in the experiment process about the conditions on the column,the temperature of the column,the resolver and the way of increasing temperature and so on.The confirmation of TEA was performed by using reserved time,and the quantitative analysis of TEA was carried out by external standard method.A good linear relation is observed in the standard curve rang of 0.00～20 g/mL,with r=0.9993,the detection limits of 0.016 mg/L,the average recovery rate of 99.0%～104.2% and RSD 2.2%.The method is effective to analyze the contents in different cosmetics.

关 键 词：气相色谱法 化妆品 三乙醇胺 外标法 含量 

分 类 号：O677.105[理学—化学]