Acta Chimica Sinica ›› 1978, Vol. 36 ›› Issue (4): 269-274. Previous Articles     Next Articles

银的催化分光光度测定

仰蜀薰, 李伸后   

  1. 郑州大学化学系
  • 投稿日期:1978-03-07 发布日期:2013-06-03

SPECTROPHOTOMETRIC CATALYTIC METHOD FOR THE DETERMINATION OF SILVER

YANG SHU-SHUIN, LI SHEN-HOU   

  1. Deparatment of Chemistry, Chengchow University
  • Received:1978-03-07 Published:2013-06-03

The catalytic behavior of silver ion for the roaction betwoon porsulfate and cerous ion was utilized for the dotormination of silver by speetrophotometric method.The test solution containing 5 ml of 0.025 M cerous salt, 1-7 ml of 2 N sulfuric acid, various amount of silver ion and 10.00 ml of 0.05M persulfate was diluted to 25.00 ml.Undor the optimum condition, the reaction rate (or slope of D-t line) is proportional to the silver ion concentration in the ranges 4 to 60 μg/ml (for 410 nm) and 0.2 to 24 μg/ml (for 330nm)with the maximum deviation of 11.6%.The effects of temperature and various foreign ions have also been investigated.