硒(IV)-KI-结晶紫显色体系的研究  

Study on the Color Se(Ⅳ)-KI-Crystal Violet

作　　者：陈戈[1] 范慧俐[1] 温美娟[1] 

机构地区：[1]北京科技大学化学系

出　　处：《冶金分析》1998年第3期9-11,共3页Metallurgical Analysis

摘　　要：对硒（Ⅳ）－ＫＩ－结晶紫显色体系进行了较系统的研究，确定了最佳显色条件。该体系在０－２０ｕｇ／２５ｍｌ范围内服从比尔定律。摩尔吸光系数ε＝２．０ｘ１０５．测定了中草药黄芪及矿泉水中硒的含量与加标回收率。结果满意。A highly sensitive color system of selenium(Ⅳ)-KI-crystal violet was studied systematically. The optimum condi-*tions and the main characters of the system were determined.Beer's law is obeyed over a range of 0-20ug Se/25ml,and the*apparent molar absorptivty is 2.0x105L·mol-1·cm-1.The color system was used to determine the microamounts of se inHuangqi which is one kind of Chinese herbal medicines and in mineral water. The results were satisfactory.*

关 键 词：硒 结晶紫 分光光度法 硒化钾 

分 类 号：O613.52[理学—无机化学]