摘要
报道了以铑（Ⅲ）催化溴酸钾氧化偶氮氯膦pA为基础测定痕量铑的催化光度分析法，建立了一种在水相中直接测定痕量铑（Ⅲ）的新方法。铑（Ⅲ）含量在5~30μg/L范围内符合比耳定律，检出限为5μg/L，本法用于铂-铑催化剂中铑的测定，结果满意。
A new catalytic spectrophotometric method for the dermination of rhodium(Ⅲ) was described onthe catalytic action of Rh(Ⅲ) on the oxidative fading chlorophosphonazo-pA with KBrO3 in acid medium.Beer's law was obeyed from 5 ~ 30 μg/L Rh(Ⅲ)/L and the determination limit was 5 μg/L. This method hasbeen used to determine Rh(Ⅲ). in platinum-rhodium catalyst with satisfactory result.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
2000年第4期494-496,共3页
Chinese Journal of Analytical Chemistry
基金
甘肃省教委资助
