阿拉伯树胶增溶增敏分光光度法测定微量硒(Ⅳ)的研究

被引：14

作者：

刘黎

机构：

[1] 四川大学化学学院!四川成都

来源：

化学研究与应用 | 2000年 / 02期

关键词：

硒; 磺化钾; 孔雀绿; 分光光度法;

D O I：

暂无

中图分类号：

O657.32 [可见和紫外分光光度法];

学科分类号：

070302 [分析化学];

摘要：

A new highly sensitive color reaction of selenium(Ⅳ) with potassium iodide and malachite green and arabic gum has been studied.The optimum conditions and the main characters of the system have been determined.The apparent molar absorptivity of the complex is 2.5×10 5L·mol -1 ·cm -1 at 660nm.Beers law is applicable over a range of 0 25μg/25ml for Se(Ⅳ).The method has been amployed for the determination of selenium(Ⅳ) in Chinese herbal medicines,Lingzhi and Huangqi,the results being satisfactory.

引用

页码：218 / 220

页数：3