文献类型：期刊文献

中文题名：高效阴离子交换-脉冲安培法测定化妆品中葡萄糖酸锌含量

英文题名：DETERMINATION OF ZINC GLUCONATE IN COSMETICS BY HIGH PERFORMANCE ION EXCHANGE CHROMATOGRAPHY WITH PULSED AMPEROMETRIC DETECTION

作者：施超欧[1];丁卉[1];刘菊[1];王荣[1];杨柳[1]

机构：[1]华东理工大学分析测试中心,上海200237

年份：2012

卷号：28

期号：2

起止页码：171

中文期刊名：离子交换与吸附

外文期刊名：Ion Exchange and Adsorption

收录：CSTPCD;;Scopus;北大核心:【北大核心2011】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：葡萄糖酸锌;离子色谱;脉冲安培

外文关键词：Zinc gluconate;IC;Pulsed amperometric detection.

摘要：建立了高效阴离子交换-脉冲安培法测定化妆品中葡萄糖酸锌的含量。样品用水超声提取后,离心取上清液过On Guard II RP柱除去疏水性化合物,再经CarboPac PA1和CarboPac PA20保护柱分离,脉冲安培检测,葡萄糖酸锌在0.1～5.0mg/L范围内线性关系良好(r2=0.9999),加标回收率在98.9～107.7%之间,方法检出限为0.042mg/L,对应样品中检出限为4.2mg/kg,方法简单,灵敏度高。
A new practical method for determination of zinc gluconate in cosmetics by high performance ion exchange chromatography with pulsed amperometric detection was established.The sample was prepared by removing the hydrophobic components with On Guard II RP column after extracting by the ultra pure water.The sample was separated by connecting the CarboPac PA20 guard column and CarboPac PA1 guard column in series and detected by pulsed amperometric detection.The linear range was 0.1~5.0mg/L(r2=0.9999) for zinc gluconate and the recovery was 98.9~107.7%.The detection limit of zinc gluconate in sample was 4.2mg/kg while the detection limit of method was 0.042mg/L.High performance and good sensitivity was obtained.