镀铑溶液中铑的快速测定  

Rapid Analysis of Rhodium in Rhodium Plating Bath

作　　者：丘山 丘星初[1] 黄曙明[1] 

机构地区：[1]福龙五金电业有限公司技术部,广东番禺511483

出　　处：《电镀与精饰》2004年第1期34-36,共3页Plating & Finishing

摘　　要：用次氯酸钠作显色剂光度测定镀铑溶液中的铑。优选出最佳的测量波长 ,研究了酸度、显色剂浓度及干扰元素对测定的影响。铑的质量浓度介于 0～ 2 5 μg/m L范围内遵守比尔定律。方法简便快速 ,且具有良好的选择性。Rhodium in rhodium plating bath was determined by spectrophotometry with sodium hypochlorite as chromogenic agent. Optimum measuring wavelength was selected. The effect of acidity, concentration of chromogenic agent, and interfering elements on the measurement was studied. The relation between absorbance and rhodium concentration at 0～25 μg/mL is linear. The method is simple, rapid and has good selectivity.

关 键 词：镀铑 铑 次氯酸钠 光度法 显色剂 

分 类 号：TQ153.19[化学工程—电化学工业]