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《CHEMISTRY AND ADHESION》 1995-02
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Determination of Trace Silver by Catalytic Spectrophotometric Method

Wu Jianwei (The Institute of Petrochemistry, Heilongjiang Academy of Sciences, Halbiu,150040)Gu Zhicheng; Meng Hua (Tong Ji University, Shanghai) (Harbin Unirersity)  
A method has been studied for the spectrophotometric determination of trace sliver (I)which is used to catalyze the indicator teaction K_2S_2O_8-DPA (3- (3, 4-dihydroxyphenyl) alanine) .The linear range of determination is 1× 10 ̄(-2)~8×10 ̄(-l)μg/ml.The optimum condition for determination of silver (I). such as PH, coacentration of reactants and of activator and temperature was chosen. Some ions were observed to influence the determination and the method of removing interference was discussed. In addition. the reaction mechanism and kinetic model were proposed.On-line spectrophotometer may follow the reaction processes and improve the precision and the simplicity of the determining processes.
【CateGory Index】: O614.122
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【References】
Chinese Journal Full-text Database 2 Hits
1 PAN Zhi-bin(Fujian College of Bioengineering Vocation Technology,Fuzhou 350002,China);Determination of trace silver with a new system of Ag(Ⅰ)-K_2S_2O_8-methylene blue[J];Strait Pharmaceutical Journal;2008-12
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【Co-references】
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4 Zhu Zhongliang, Huang Jianyong, Li Tonghua, Zhang Junyan (Department of Chemistry,Tongji University, Shanghai 200092);Simultaneous Determination of Tungsten(Ⅵ ) and Molybdenum (Ⅵ ) by Principal Component Regression and Masking Agent[J];Chinese Journal of Analytieal Chemistry;1998-10
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【Secondary References】
Chinese Journal Full-text Database 5 Hits
1 CHEN Xue LIU Yang ZHANG Zhen-Huaa NIE Feng-Lian (Gold Geological Institute of CAPF,Langfang,Hebei 065000,P.R.China) a(College of Resource and Environment,Northwest A&F University,Yangling,Shaanxi 712100,P.R.China);Silver Determination and Analysis Technology of Domestic Research-Part One——Developments of Silver Spectrophotometry in China[J];Chinese Journal of Spectroscopy Laboratory;2009-06
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