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机构地区:[1]中国预防医学科学院环境卫生监测所,北京100021
出 处:《色谱》1999年第5期486-487,共2页Chinese Journal of Chromatography
摘 要:采用反相高效液相色谱法测定化妆品中对苯二胺等 5 种染料中间体,以 Zorbax C8 为固定相, V(三乙醇胺)∶ V(水)∶ V(乙腈)= 0.95∶94.05∶5 为流动相,加入磷酸调 p H 值为 7.7,检测波长为 280 nm 。样品用体积分数为 95% 的乙醇超声提取,回收率为 87% ~107% (n= 6),相对标准偏差为 2.3% ~6.4% 。A reversed\|phase high performance liquid chromatographic method was used to detect 5 dyes including p\|phenylenediamine in cosmetics. A Zorbax C 8 column was used and mobile phase was V(triethanolamine)∶V(water)∶V(acetonitrile)=0.95∶94.05∶5 adjusted to pH 7.7 by phosphoric acid. The wavelength 280 nm was selected. Samples were extracted with 95% ethanol by ultrasonic method. The recoveries were 87%\|107% and the relative standard deviations were 2.3%\|6.4%.
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