Analytical Science and Technology (분석과학)

The Korean Society of Analytical Sciences (한국분석과학회)
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Analysis of Arsenic(III) by the Cathodic Stripping Voltammetry

음극 벗김 전류법을 이용한 비소(III) 분석에 관한 연구

  • Yun, Young Ja (Department of Chemistry, College of Natural Science, Soong Sil University) ;
  • Lee, Hyung Sook (Department of Chemistry, College of Natural Science, Soong Sil University) ;
  • Ko, Weon Bae (Department of Chemistry, College of Natural Science, Se-Jong University) ;
  • Kim, Chung Hee (Department of Chemistry, College of Science, Sook Myung Women's University)
  • 윤영자 (숭실대학교 자연과학대학 화학과) ;
  • 이형숙 (숭실대학교 자연과학대학 화학과) ;
  • 고원배 (세종대학교 자연과학대학 화학과) ;
  • 김정희 (숙명여자대학교 이과대학 화학과)
  • Received : 1992.10.30
  • Published : 1992.12.25
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Abstract

The effects of metal ions on the arsenic(III) stripping peak were examined by the cathodic stripping voltammetry. The reduction stripping peak potential and current of arsenic(III) value were -0.79V(vs. Ag/AgCl). $0.86{\mu}A$ by using 0.1N-hydrochloric acid solution. When 10 times of Cu(II) was added to the solution, the reduction stripping peak potential of arsenic(III) was the value of -0.84V(vs. Ag/Cl), which showed a good agreement with theoretical value -0.84V(vs. Ag/Cl) by using 0.1N hydrochloric acid solution. Lead(II) and copper(II) increased the stripping peak heigh of arsenic(III), Among them, the copper(II) extremely enhanced it.

음극 벗김 전압전류법을 이용하여 비소(III)의 벗김 봉우리에 대한 금속 이온의 영향에 대하여 조사하였다. 비소(III)의 환원 벗김 봉우리 이론적인 전위값이 -0.84V(vs. Ag/AgCl)인데 비하여, 0.1N- 염산을 사용하였을 때 전위값은 -0.79V(vs. Ag/AgCl)이고, 여기에 구리(II)를 10배 첨가하였을 때 -0.84V로써 이론적인 전위값과 일치하였으며 전류값은 $0.86{\mu}A$로 가장 높게 나타났다. 비소(III)의 벗김 봉우리를 증가시키는 금속이온으로 납(II), 구리(II) 등이 있었고, 특히 구리(II)이온이 비소(III)의 벗김 봉우리를 가장 많이 증가시켰다.

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