文章基本信息

标题：アルカリ溶液中におけるヨウ化カリウムによる水銀(II)の分光定量法
本地全文：下载
作者：大島源一郎 ; 長沢金蔵
期刊名称：Journal of Health Science
印刷版ISSN：1344-9702
电子版ISSN：1347-5207
出版年度：1970
卷号：16
期号：2
页码：78-82
DOI：10.1248/jhs1956.16.78
出版社：The Pharmaceutical Society of Japan
摘要：Spectrophotometric measurement of mercury (II) complex formed with potassium iodide in alkaline medium provides a convenient method for the determination of mercury (II). Although cyanide, cysteine, and egg albumin interfere with this analysis, malonate, glycine and nitrate, and taratrate are anions which interfere at a molar ratio of anion to mercury (II) of 1000 : 1 and 100 : 1, respectively. Though several cations have absorption bands in the ultraviolet region to form a complex with potassium iodide in neutral aqueous medium, the bands of their complex disappear in alkaline medium. Mercury (II) can thus be determined with considerable accuracy by this method in the presence of some cations, such as copper (II), palladium (II), bismuth (III), and platinum (IV), which are known to interfere in its determination by ordinary dithizone method. This method gives as a good result for mercury (II) determination as the usual dithizone method after decomposition of organic mercury (II) compounds by Schoniger's method.