%0 Journal Article
%T Determination of Eleven Preservatives Including Bronopol in Cosmetic by Reversed Phase Ion Pair Chromatography<br>反相离子对色谱法测定化妆品中溴硝丙醇等11种防腐剂
%A Hu Junming
%A Wang Jun
%A <br>胡俊明
%A 王骏
%J 色谱
%D 1999
%I 
%X Reversed-phase ion-pair chromatography was used to detect 11 preservatives including bronopol, esters of p-hydroxybenzoic acid (PHBA) in cosmetics. Zorbax C8 column was used and mobile phase was V (0.05 mol/L NaH2PO4):V(methyl alcohol):V(acetonitrile) = 50:35:15 with addition of hexadecyltrimethylammonium chloride (2 mmol/L) and the pH adjusted to 3.5 by using phosphoric acid. The wavelength 254 nm was selected for detection. Samples were extracted with methanol by ultrasonic method. The recoveries were 85%-107% and the relative standard deviations were 2.2%-7.5%.
%K reversed
%K phase ion
%K pair chromatography
%K cosmetic
%K preservative<br>反相
%K 离子对色谱
%K 化妆品
%K 防腐剂
%K 溴硝内醇
%K 测定
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=6579068328FE643F&jid=4D81E042D77AFEC6881D14759692069C&aid=D7F5F79B7B81B862354AA132068C6000&yid=B914830F5B1D1078&vid=BCA2697F357F2001&iid=94C357A881DFC066&sid=DDDA4F26E8AD3C0E&eid=CEFA535D01173730&journal_id=1000-8713&journal_name=色谱&referenced_num=5&reference_num=1