高等学校化学学报 ›› 1985, Vol. 6 ›› Issue (9): 793.

• 研究简报 • 上一篇    下一篇

铌-二溴茜素紫-硫酸根-十六烷基三甲基溴化铵多元络合物测定铌

容庆新, 陈志澄, 潘庆洪, 杜国平, 陶小林   

  1. 中山大学化学系
  • 收稿日期:1984-01-07 出版日期:1985-09-24 发布日期:1985-09-24

Spectrophotometric Determination of Niobium with Nb(Ⅴ) DBG-SO42--CTMAB System

Kong Qingxin, Chen Zhieheng, Pan Qinghong, Du Guoping, Tao Xiaolin   

  1. Department of Chemistry, Zhongshan University, Guangzhou
  • Received:1984-01-07 Online:1985-09-24 Published:1985-09-24

摘要: 文献[1]提到二溴茜素紫(DBG)测定铌的可能性,但尚未见详细报导。至于DBG与铌组成四元混配络合物的研究迄今未见介绍。本文研究了DBG、CTMAB、SO42-与铌组成四元混配络合物测定铌的新方法,并初步探讨了络合物的组成。

Abstract: Anew method for the determination of niobium in rocks by means of a polyatomic complex Nb(Ⅴ)-DBG-SO42--CTMABis described.The molar extinction coefficient of the complex is 5.9×104 and the molar ratio of Nb(Ⅴ):DBG:CTMABis 1:1:2.

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