Acta Chimica Sinica ›› 1964, Vol. 30 ›› Issue (2): 101-107.     Next Articles

微量钒的催化测定

田笠卿, 张文彬   

  1. 南京大学化学系
  • 收稿日期:1962-12-25 出版日期:1964-04-15 发布日期:2013-06-03

A STUDY OF THE CATALYTIC DETERMINATION OF MICRO AMOUNTS OF VANADIUM

TIEN LI-CHING, CHANG WEN-BING   

  1. Department of Chemistry, Nanking University
  • Received:1962-12-25 Online:1964-04-15 Published:2013-06-03

The catalytic action of vanadium on the reaction between benzidine and potassium chlorate has been studied and therefrom a sensitive and convenient method fox the detexmination of traces of vanadium has been proposed.The reaction rate between benzidine and potassium chlorate is very slow.If micro amounts of vanadium and small amounts of oxine are added to the test solution at pH 2.5-3.0,and heat for some time at 100℃ then the vanadium shows a strong catalytic action on the above reaction.