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《JOURNAL OF CHANGCHUN TEACHERS COLLEGE》 1999-02
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Determination of trace Copper by Extraction Catalytic Kinetic Spoctrophotometry

Jiang Guihua; Wang Xiaoju(Department of chemistry,Chang chun Normal College,Changchun 130032)  
A new extraction catalytic kinetic spectrophotometric method for the determcnation of trace copperis studied. The method is based on the copper catalyzed oxidation of 0-aminophenol by hydrogen peroxide inweak acidic medium at PH 9. 8 The raction time. Concentration of o-aminophenol in agueous phase and degree of reaction are controued by extraction equilibrium. The absorbance of organic phase is measured at420nm. The linear range of the determination is 0. 50- 20g/L. The detection limit is 2. 2 ×10-7g/L. Themethod has been apptied to the determination of trace copper in water and food samples with satisfactory results.
【CateGory Index】: O657.3
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【References】
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1 LI Chao~(1), ZHANG Yong~(1 ), WU Dan~(1), DING Yu- long~(1), WEI Qin~(1,2), OU Qing- yu~(2)(1. Jinan University, Jinan250022 , China;2. Lanzhou Institute of Chemical Physics, the Chinese Academy of sciences, Lanzhou730000, China );Review of Research on Catalytic Kinetic Spectrophotometric Determination of Trace Copper[J];Analysis and Testing Technology and Instruments;2003-04
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【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 JIANG Gui hua,WANG Xiao ju (Department of Chemistry, Changchun Normal College,Changchun 130032,China);Determination of trace copper by extraction catalytic kinetic spectrophotometry[J];JOURNAL OF NORTHEAST NORMAL UNIVERSITY (NATURAL SCIENCE EDITION);1999-03
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