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《Plating & Finishing》 2006-01
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Determination of Silver in Silver Plating Bath by Inhibitory Kinetic Spectrophotometry

ZHANG Dong,SONG En-jun(School of Enviromental and Chemical Engineering,Shenyang Ligong University,Shenyang 110168,China)  
Inhibiting the fading reaction of KIO_4 oxidizing bordeaux-red by silver was studied.In HAc medium at 70℃,silver can sensitively inhibit the fading reaction of KIO_4 oxidizing bordeaux-red and the degree of inhibitory is in direct proportion to the amount of silver within a certain limits.A new method for the determination of silver by inhibitory kinetic spectrophotometry is established.The optimum conditions were found,rate constant and activtion energy were determined.The linear range is 0.0~2.0 μg/mL.The method has been used as a convenient way for the determination of silver in silver plating bath with satisfactory results.
【CateGory Index】: TQ153.16
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