分析测试学报2013，Vol.32Issue(3)：385-388,4.DOI:10.3969/j.issn.1004-4957.2013.03.022
离子色谱-柱后衍生紫外检测法测定化妆品中碘酸盐与溴酸盐
Determination of Iodate and Bromate in Cosmetics by Ion Chromatography with Postcolumn Deriviation and UV Detection
摘要
Abstract
An ion chromatographic method with post-column deriviation and UV detection for the determination of iodate and bromate in cosmetics was developed and validated. The sample was purified with a guard-column IonPac AG11 - HC (50 mm×4 mm) , and separated on an analytical column IonPac ASH -HC(250 mm×4 mm) using KOH as an eluent with a self-regeneration suppressor. NaNO2 and KBr were used as the post-column deriviation solution. The analyte was quantitatively analysed by external standard and detected with a DAD detector. The results showed that the calibration curves were linear in the range of 2. 0 - 1 000 mg/kg with correlation coefficients not less than 0. 999 8. The spiked recoveries were in the range of 84% -99% with relative standard deviations ( RSDs, n = 3) less than 2% . With advantages of simplicity, good reproducibility and high sensitivity , the method was suitable for the determination of iodate and bromate in cosmetics.关键词
离子色谱法/柱后衍生/化妆品/溴酸盐/碘酸盐Key words
ion chromatography/ post-column derivatization/ cosmetics/ iodate/ bromate分类
化学化工引用本文复制引用
王红青,肖海龙,阮小娇,王娜,黄建萍,王啸..离子色谱-柱后衍生紫外检测法测定化妆品中碘酸盐与溴酸盐[J].分析测试学报,2013,32(3):385-388,4.基金项目
国家质检总局科技计划项目(2011QK143) （2011QK143）
