催化动力学分光光度法测定电镀液中的钯

Catalytical Kinetics Spectrophotometry Determination of Pd in Electroplating Solution

利用痕量Ｐｄ￣（２＋）在ＨＣｌ介质中的催化作用建立了Ｐｄ的催化动力学分光光度测定法，测定线性范围：４０～２００ｇＰｄ／ｍｌ。应用于电镀中Ｐｄ含量的测定，相对标准偏差在２．５％以内，回收率为９７．０～１０１．０％。电镀液中的７种添加剂对Ｐｄ的测定无干扰。

A catalytical kinetics spectrophotometry has been established for determinating of Pd base on the catalysis of trace amounts of Pd2+in HCl medium.Linear range of the method covers 40～200ng Pd/ml.The method can be used to determinate the contents of Pd in electroplating solutions with a standard deviation less than 2.5% and 97～101.1% of recoveries 7 aditional agents in the electroplating solutions didn't disturb the determination.