5-Br-PADAP光度法同时测定电镀CIS薄膜废液中的铜和铟  

Determination of Cu,In in CuInSe_2 waste liquor by 5-Br-PADAP spectrophotometry

作　　者：宋小杰[1] 刘昌龄[2] 徐海燕[1] 徐玲[1] 刘倩[3] 

机构地区：[1]安徽建筑工业学院材料与化学工程学院,安徽合肥230022 [2]合肥师范学院化学化工系,安徽合肥230061 [3]大连理工大学化工与环境生命学部,辽宁大连116023

出　　处：《应用化工》2012年第1期174-176,182,共4页Applied Chemical Industry

基　　金：国家自然科学基金(20901001);安徽省教育厅自然科学基金项目(KJ2010B291)

摘　　要：采用2-(5-溴-2-吡啶偶氮)-5-二乙氨基苯酚(5-Br-PADAP)为显色剂,在表面活性剂聚二乙醇辛基苯基醚(OP)存在下同时测定铜和铟。在pH=4.0 HAC-NaAC缓冲介质中,显色体系的最大波长分别在560 nm和570 nm;根据吸光度的加和性,对电镀CuInSe2(CIS)薄膜废液进行了分析,结果令人满意。结果表明,铜在0.1～1.4 mg/L和铟在0～1.0 mg/L范围内有良好的线性关系。加标回收率铜为96.74%、铟为95.23%。The concentration of Cu（Ⅱ） and In（Ⅲ） can be determined simultaneously using 5-Br-PADAP as chromogenic reagent in the presence of non-ionic surfactant OP.In HAC-NaAC buffer solution（pH = 4.0）,the largest adsorption wavelength of chromogenic test sample were 560 nm and 570 nm.According to the additivity of absorbance,the components and contents of electroplating waste liquor CuInSe2 was analyzed,the results were satisfied.Experimental results indicated that the concentration of Cu（Ⅱ） showed a liner range of 0.1~1.4 mg/L and the concentration of In（Ⅲ） showed a liner range of 0~1.0 mg/L.The addition standard recovery of Cu（Ⅱ） and In（Ⅲ） were 96.74% and 95.23%,respectively.

关 键 词：5-BR-PADAP 光度法 电镀废液 铜 铟 

分 类 号：TQ016.1[化学工程] TQ420.711