摘要
钯（Ⅱ）与对碘偶氮氯膦在硝酸介质中形成组成比为１∶２的蓝色配合物，其最大吸收波长位于６４０ｎｍ处，表观摩尔吸光系数ε＝３．３×１０４Ｌ·ｍｏｌ－１·ｃｍ－１，钯的质量浓度在０．０～１．０ｍｇ／Ｌ范围内符合比尔定律。该法简便、快速、常温下可在水相中直接测定微量钯。检测限为２μｇ／Ｌ，回收率为１０１．８％，ＲＳＤ为２．９８％。应用于废钯催化剂回收液中钯含量的测定，结果满意。
n this
paper,the conditions of colour reaction of Pd()chlorophosphonazoPI and its application were
studied.A new method for the determination of trace Pd() is proposed.Beer's law is obeyed for Pd()
in the range of 0.010mg.L-1,the molar absorptivity is 3.3104Lmol-1cm-1 at 640nm.
出处
《分析试验室》
CAS
CSCD
1999年第3期71-73,共3页
Chinese Journal of Analysis Laboratory
基金
甘肃省教委资助
