Ru-KIO4-偶氮氯膦-pC体系催化分光光度法测定微量钌  

Kinetic spectrophotometric determination of trace ruthenium with RuⅢ-KIO_4-chlorophosphonazo-pC system

作　　者：魏立山[1] 李欣[2] 寇宗燕[1] 

机构地区：[1]甘肃联合大学化学系,甘肃兰州730000 [2]中国科学院兰州化学物理研究所,甘肃兰州730000

出　　处：《冶金分析》2002年第6期9-10,19,共3页Metallurgical Analysis

摘　　要：在酸性介质中,微量钌 的存在对于KIO4氧化偶氮氯膦 pC的褪色反应有明显的催化作用,据此建立了微量钌的催化光度分析法,方法的检出限为0 01μg/10mL,Ru 的含量在0 02～0 4μg/10mL范围内符合比尔定律,反应在水相中进行,应用于贵金属精矿中钌的测定,结果满意。In this paper,a catalytic spectrophotometric method based on the catalytic effect of Ru*#on the oxidation of chlorophosphonazopC with KIO4 in acidic medium has been proposed for the determination trace rutheniumThe detection limit is 001μg/10mL for Ru*#, Beer's law is obeyed in the range of 002-04μg/10mLThe method proposed in this paper has been applied to the determination of ruthenium in concentrate with satisfactory results

关 键 词：测定 钌 偶氮氯膦-pC 催化光度法 

分 类 号：TG115.3[金属学及工艺—物理冶金]