CJCU

Chem. J. Chinese Universities ›› 1999, Vol. 20 ›› Issue (S1): 313.

• Molecular Spectroscopy • Previous Articles     Next Articles

Ultrasensitive Spectrophotometric Method for the Determination of Trace Bismuth with Tungstate and Rhodamine 6G

WANC Jia-Lin1, LI Zu-Bi1, XU Qi-Heng2   

  1. 1. Adult Education College, Yunnan Universily, Kunming, 650091, P. R. china;
    2. Department of Chemistry, Yunnan University, Kunming, 650091, P. R, china
  • Online:1999-12-31 Published:1999-12-31

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Abstract:

Bismuth can be determined with various chromogenic agents, such as xylenol orange and Bromopyrogallol red-Ethyl violet. In most of the methods, the sensitivity is very poor. The spectrophotometric determination of tellurium(IV) as ion-association complex of the tellurium with tungstate and nile blue in aqueous solution in the presence of polyvinyl alcohol(PVA) has been reported.

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