摘要
根据Fe^(2+)和Fe^(3+)离子在铂电极上的电化学氧化还原特性,用DZ-Ⅰ型电镀添加剂测定仪快速测定铬镀液中Cr^(+5)和Fe^(3+)离子的浓度,本方法也适用于测定黑铬镀液及锌、铜镀层铬酸钝化液中Cr~(+60的浓度。
A rapid method for the determination of Cr( Ⅵ ) and Fe( Ⅲ ) ion concentration of Cr plating bath by using instrument, model DZ-Ⅰ , was suggested, based on the electrochemical characteristics of the studied ions on Pt electrode. The resultes showed that the suggested method is suitable for the determination of Cr( Ⅵ ) ion concentration in black Cr plating bath and in passivating solution for zinc and copper.
出处
《材料保护》
CAS
CSCD
北大核心
1991年第11期22-24,3,共3页
Materials Protection