文章基本信息

标题：ノンサプレッサー型イオンクロマトグラフィーによる粉末含有化粧品中の硫黄の定量
本地全文：下载
作者：辻美佐子 ; 林正人 ; 松岡昌弘等
期刊名称：Journal of Health Science
印刷版ISSN：1344-9702
电子版ISSN：1347-5207
出版年度：1996
卷号：42
期号：1
页码：96-100
DOI：10.1248/jhs1956.42.96
出版社：The Pharmaceutical Society of Japan
摘要：A non-suppressor ion chromatographic determination of sulfur in cosmetic products containing powders has been studied by converting sulfur to sulfate ion. The pretreatment of samples was almost the same as the one for gravimetric analysis, which includes a neutralization process with hydrochloric acid. But the removal of powders was necessary before the oxidation process due to their interference. It was also revealed that a large amount of chloride ion existing in the sample solution greatly affected characteristics of an eluent, and consequently eluted by incorporating a part of the sulfate ion. The method was modified to dilute the test solution to adjust the concentration of the chloride ions at less than 30 mM, and applied to the cosmetic products containing 2.7% sulfur. The results were satisfactory with R.S.D. of 1.14% and 99.1% recovery.
关键词：cosmetics;sulfur;non-supressor ion chromatography;sulfate ion;chloride ion