云南化工2012，Vol.39Issue(1)：36-38,3.
铑-钨酸盐-丁基罗丹明B体系光度法测定痕量铑的研究
Study on the Spectrophotometric Method for the Determination of Rhodium with Rhodium-Tungstate-Butyl rhodamine B System
摘要
Abstract
A new spectrophotometric method for the determination of Rh （Ⅲ） was developed based on the ion-associated reaction among rhodium （ Ⅲ）, tungstate and butyl rhodamine B in the presence of poly （vinyl alcohol） （PVA） and in 6.0 mol/L H2SO4 medium. The good linear relationship between the absor- bance at 589nm and the concentration of Rh（ Ⅲ ） in the range of 1.2 - 20.0 ng/mL was obtained with the apparent molar absorptivity of 5.70 ×10^6L·mol^-1·cm^-1 The method possesses good selectivity and could be used for the determination of rhodium in the catalyst and metallurgical product. The results obtained by this method were consistent well with those obtained by SnCl2 method.关键词
铑/丁基罗丹明B/光度法Key words
Rhodium/Butyl rhodamine B/Spectrophotometry分类
化学化工引用本文复制引用
苗兆涛,张婷,张英,丁中涛,曹秋娥..铑-钨酸盐-丁基罗丹明B体系光度法测定痕量铑的研究[J].云南化工,2012,39(1):36-38,3.基金项目
基金项目：国家自然科学基金 （）
云南省自然科学基金（2009CD008）. （）
