摘要
研究在PVA-AG(聚乙烯醇-阿拉伯胶)存在和不同酸度下,Mn+-Br--R6G(金属离子-溴化物-罗丹明6G)的显色体系.文中列出几个摩尔吸收系数ε>4.3×105的高灵敏显色体系的分析特性,并用于测定水样中铅.
In the presence of polyvinyl alcohol and arabic gum, the color developing systems of metal ion-bromide-rhodamine 6G is studied under variable acidity.Several high sensitive color developing systems of metal ion-bromide-rhodamine 6G are obtained through screening;and their characteristics of analysis are enumerated. These systems have been applied to the determination of trace lead in water sample.
出处
《华侨大学学报(自然科学版)》
CAS
1994年第3期280-284,共5页
Journal of Huaqiao University(Natural Science)
关键词
铅
罗丹明
溴化钾
聚乙烯醇
阿拉伯胶
显色反应
lead ions, rhodamine 6G, potassium bromide, polyvinyl alcohols, arabic gum