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《Chinese Journal of Analysis Laboratory》 2006-08
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A catalytic reductive fading spectrophotometric method for determination of trace copper(Ⅱ) in Mongolian medicines

SHA Ren~ and WU Dubala(Chemistry & Environment Science College of Inner Mongolia Normal University,Inner Mongolia,Huhhot 010022)  
A new kinetic photometric method for the determination of trace amounts of copper is established,based on the discoloring reaction of ascorbic acid reducing chlorophosphonazo-mA,which is catalyzed by Cu(Ⅱ) in the presence of cetyltrimethylammonium bromide and α、 α-Dipyridyl.A fixed time method is used to monitor the catalytic reaction at 554 nm.The linear range is 0~0.11 μg/mL,the detection limit is 6.3×10~(-11) g/mL and relative stardard deviation is 3.6%.This method has been used for the determination of trace amounts of copper in many kinds of Mongolian medicines and the results obtained are satisfactory.
【Fund】: 内蒙古自治区自然科学基金(200408020213)资助
【CateGory Index】: R29
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【Citations】
Chinese Journal Full-text Database 5 Hits
1 Xu Hongping, Li Jiang, Chen Xingguo *, Hu Zhide (College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000) [WT5HZ];Catalytic Spectrophotometric Determination of Osmium ?Using Osmium-KIO_4-Chlorophosphonazo-mA System[J];Chinese Journal of Analytieal Chemistry;2001-05
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【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 SHA Ren (Coll. Chem. & Envmt. Sci., Inner Mongolia Normal Univ., Hohhot 010022, Inner Mongolia, China);Spectrophotometric and catalytic determination of trace amounts of copper with the system of H_2O_2 and alizarin[J];Journal of Baoji College of Arts and Science(Natural Science Edition);2005-03
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【Co-references】
Chinese Journal Full-text Database 2 Hits
1 Wang Wenlei,Ding Botao,Qiu Xiaoguo(Shandong Provincial Environmental Monitoring Centre,Jinan 250013,China);DETERMINATION OF TRACE COPPER (Ⅱ) BY CATALYTIC KINETIC SPECTROPHOTOMETRY[J];Chemical Analysis and Meterage;2006-05
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