电镀层中的Ni和Pd分光光度测定

Determination of Nickel and Palladium in Electroplated Layer by Spectrophotometry

提出在氨性介质中以高碘酸钠为氧化剂、丁二肟为显色剂的分光光度法测定Ｎｉ；在硫酸介质中以抗坏血酸为保护剂、碘化钾为显色剂的一阶导数法测定Ｐｄ。

A spectrophotometric and a first derivative spectrophotometric methods have been proposed respectively for determining nickel in ammoniac medium using sodium periodate as oxidant and dimethylglyoxime as color reagent and for the determining palladium in sulfuric acid medium using ascorbic acid as protector and potassium iodide as color reagent.These methods are rapid,accurate and reproducible.The recommended methods have been successfully applied for the determinations of nickel and palladium in the electroplated layer.