Acta Chimica Sinica ›› 1960, Vol. 26 ›› Issue (2): 103-107. Previous Articles     Next Articles

大量锆存在时微量钍的比色测定

郭小伟   

  1. 陕西省冶金局冶金研究所
  • 收稿日期:1959-08-03 出版日期:1960-06-15 发布日期:2013-06-03

THE MASKING OF ZIRCONIUM IN PHOTOMETRIC DETERMINATION OF THORIUM

KUO XIAO-WEI   

  1. The Institute of Metallurgy, Bureau of Metallurgical Industry, Shensi
  • Received:1959-08-03 Online:1960-06-15 Published:2013-06-03

In the photometric determination of thoriu.n with thoronol, it is found that dehydroascorbic acid may be used as an effective masking reagent for zirconium. The optimum conditions has been investigated and a procedure is given for the determination of thorium in the presencx of zirrnmum. The method has been used for the determination of thorium in monazite sand and satisfactory results were obtained.