Chem. J. Chinese Universities ›› 1989, Vol. 10 ›› Issue (4): 360.

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Resin Phase Spectrophotometry(Ⅲ)--Rare Earth-Nitrate-Diazoderivatives of Chromotropic Acid Coloring Reaction on Resin Phase

Yang Quansheng, Nie Jilan, Guo Qun, Tan Yuquan   

  1. Department of Chemistry, Jiangxi University, Nanching
  • Received:1987-08-11 Online:1989-04-24 Published:1989-04-24

Abstract: Six common diazoderivatives of chromotropic acid as coloring reagents on resin phase were selected for determination of rare earth. The factors of affecting resin adsorption ratio arc preliminarily discussed. The experimental results showed that in the medium of nitric acid, trichloroarsenazo and trioromoarsenazo may be used to resin phase spectrophotometry of rare earth, when a large number of nitrate exist.

Key words: Resin phase spectrophotometry, Rare earth, Diazoderivatives of chromotropic acid

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