分光光度法测定电镀液中的稀土元素含量  

Spectrophotometric Determination of the Content of Rare Earth Elements in Electroplating Baths

作　　者：罗少林[1] 张英杰[1] 范云鹰[1] 

机构地区：[1]昆明理工大学,云南昆明650093

出　　处：《表面技术》2007年第1期90-91,93,共3页Surface Technology

摘　　要：为了快速、准确地测量电镀液中的稀土元素总量，采用了分光光度法，并以偶氮氯膦Ⅲ为显色剂。考察了显色剂用量、掩蔽剂用量及显色时间与吸光度的关系。加标回收试验结果显示，稀土元素回收率在97．7％～101．3％之间，证明该法准确可靠。Content of rare earth elements in the electroplating process can be determined rapidly and correctly with chlorophosphonazo Ⅲ by spectrophotometric analysis. The relationship between the absorbency and the dosages of developer, and of the masking agent has been investigated. The labeled recovery of rare earth elements is between 97. 7% - 101.3% , it suggests that this method is correct and reliable.

关 键 词：分光光度法 稀土元素 电镀 偶氮氯膦Ⅲ 

分 类 号：O657.32[理学—分析化学]