Analytical Science and Technology (분석과학)

The Korean Society of Analytical Sciences (한국분석과학회)
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Separation and analysis of Cr(III) and Cr(VI) using 8-hydroxyquinoline complexation of Cr(III)

8-Hydroxyquinoline을 이용한 크롬 3가 및 6가의 분리 및 분석

  • 임헌성 (한국화학연구원 화학분석센터) ;
  • 이석근 (한국화학연구원 화학분석센터)
  • Received : 2007.04.02
  • Accepted : 2007.04.23
  • Published : 2007.06.28
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Abstract

The quantitative determination of chromium(VI) by separation from chromium(III) complex of 8-hydroxyquinoline using solvent extraction has been studied. The reaction conditions for chromium(III) complex of 8-hydroxyquinoline and the solvent extraction of complex were investigated in detail. The chromium(III) complex was extracted with organic solvent (n-hexane) and residual chromium(VI) was determined by ICP-AES in aqueous layer. This technique is quantitative in the pH range of 8-9 and the limitations such as interfering ions were discussed.

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