Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Materials Protection》 2004-01
Add to Favorite Get Latest Update

Determination of Minim Cadmium (Ⅱ) in Treatment of Electroplating Waste Water by Catalytic Spectrophotometry

HU Zhong-yu, YANG Ming-ping ( Department of Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China).  
Trace cadmium(Ⅱ) ( Cd~(2+)) has strong catalysis for the chromogenic reaction of H_2O_2 and rhodamine B. For there is a linear correlation between the catalysis effect and Cd~(2+)concentration, the determination of trace Cd~(2+)by spectrophotometry can be built. Resuits show that the maximum absorption of colored solution is 560 nm, and the limit of detection is 0.31 μg/L. Beer′s law accords with Cd~(2+)in the range of 0~0.40 mg/L, and the recovery of adding standard solution is 96.5% ~100.1%. Combined with solvent extraction separation of KI - MIBK, the method is used to determine the trace Cd~(2+)in treatment of electroplating waster water.
【CateGory Index】: X703
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved