CJCU

Chem. J. Chinese Universities ›› 1985, Vol. 6 ›› Issue (9): 793.

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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

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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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