日用化学品科学2012，Vol.35Issue(8)：27-29,3.
气相色谱内标法测定化妆品中的甲醇和乙醇含量
Determination of methanol and ethanol in cosmetics using internal standard by gas chromatograph
霍晓敏1
作者信息
- 1. 大连市产品质量监督检验所,辽宁大连116021
- 折叠
摘要
Abstract
Methanol and ethanol in cosmetics were determined using internal standard by gas chromatography. The solvent, GC capillary column and internal standard were studied and discussed. The objectives were separated by DB-FFAP capillary column using N, N-dimethylformamide as solvent, and quantified by isopropanol as internal standard. At the same time, this method was compared with the standard one in Hygienic Standard for Cosmetics, of which GC with headspace automatic sampler was used and external standard was employed as quantitative methods. Results showed that there was a nice linear relationship when the concentration of objectives was in the range of 0.8 mg / L - 500 mg/ L （R2 methanol = 0.999 8; R2 ethanol = 0.999 7 ）. The average recovery ranged from 92.7% to 104.7% （n = 6 ）, with a relative derivation less than 2.4%.关键词
化妆品/气相色谱/甲醇/乙醇Key words
cosmetics/gas chromatograph/methanol/ethanol分类
化学化工引用本文复制引用
霍晓敏..气相色谱内标法测定化妆品中的甲醇和乙醇含量[J].日用化学品科学,2012,35(8):27-29,3.
