高等学校化学学报

高等学校化学学报 ›› 1999, Vol. 20 ›› Issue (S1): 357.

• Molecular Spectroscopy • 上一篇    下一篇

Study on the Colour Reaction of Rare Earth with 8-hydroxyquinoline in Paraffin Phase and its Applications

QUO Lan, WAN Yi-Qun, SHEN Ling-Xia   

  1. Department of Chemistry, Nanchang University, Nanchang 330047, P. R. China
  • 出版日期:1999-12-31 发布日期:1999-12-31

Study on the Colour Reaction of Rare Earth with 8-hydroxyquinoline in Paraffin Phase and its Applications

QUO Lan, WAN Yi-Qun, SHEN Ling-Xia   

  1. Department of Chemistry, Nanchang University, Nanchang 330047, P. R. China
  • Online:1999-12-31 Published:1999-12-31

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摘要：

Paraffin phase spectrophotometry is a new solid phase spectrophotometry. In this paper, RE-8-hydroxyquinoline colour reaction in paraffin phase has been studied. In the medium of NH4Cl-NH3(PH=9.0), the coloured complex of RE-8-hydroxyquinoline can be quantitatively extracted with paraffin. Beer's law is obeyed in the range of 0 to 80ug RE2O3/50ml. The new method has been applied to the determination of micro amount rare earth elements in Sc2O3 with satisfactory results.

Abstract:

Paraffin phase spectrophotometry is a new solid phase spectrophotometry. In this paper, RE-8-hydroxyquinoline colour reaction in paraffin phase has been studied. In the medium of NH4Cl-NH3(PH=9.0), the coloured complex of RE-8-hydroxyquinoline can be quantitatively extracted with paraffin. Beer's law is obeyed in the range of 0 to 80ug RE2O3/50ml. The new method has been applied to the determination of micro amount rare earth elements in Sc2O3 with satisfactory results.

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