대한화학회지 (Journal of the Korean Chemical Society)

  • 제37권7호
  • /
  • Pages.672-676
  • /
  • 1993
  • /
  • 1017-2548(pISSN)
  • /
  • 2234-8530(eISSN)
대한화학회 (Korean Chemical Society)
권호 표지

N,N-Dimethylformamide 용액 중에서 Zn(II)-Bilirubin 착물의 전기화학적 거동

Electrochemical Behavior of Zn(II)-Bilirubin Complex in N,N-Dimethylformamide

  • 배준웅 (경북대학교 자연과학대학 화학과) ;
  • 이흥락 (경북대학교 자연과학대학 화학과) ;
  • 박태명 (순천공업전문대학 환경공업과) ;
  • 서무룡 (경상대학교 자연과학대학 화학과)
  • Zun-Ung Bae (Department of Chemistry, Kyungpook National University) ;
  • Heung-Lark Lee (Department of Chemistry, Kyungpook National University) ;
  • Tae-Myung Park (Department of Environmental Engineering, Sooncheon Junior Technical College) ;
  • Moo-Lyong Seo (Department of Chemistry, Gyeongsang National University)
  • 발행 : 1993.07.20
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초록

DMF 용액 중에서 zinc(II) 이온과 copper(II) 이온의 bilirubin과의 착물형성 여부를 조사하고 Zn(II)-bilirubin(이하 Zn(II)-BR로 줄임) 착물의 전기화학적 성질을 여러가지 전기화학적인 방법으로 조사하였다. Zn(II)는 DMF 용액 중에서 bilirubin과 착물을 형성하였으나, Cu(II)는 bilirubin과 착물을 형성하지 않고 오히려 bilirubin의 산화를 촉진시켰다. Zn-BR 착물은 3단계의 환원과정을 거치며, 제1파와 제2파의 환원전류는 반응성 전류가 약간 포함된 환산전류이었으며, 제3파의 환원전류는 확산지배적인 전류이었다.

The complexation of bilirubin with zinc(II) and copper(II) ions was studied spectrophotometrically. In the zinc(II)-bilirubin (Zn-BR) system, complex is formed, but the copper(II) ion oxidizes bilirubin to biliverdin and then to the further oxidation products. The electrochemical reduction behavior of ZN-BR complex has been investigated with DC polarography and cyclic voltammetry. The three polarographic waves were obtained for the reduction of ZN-BR complex in DMF solution. Thde reduction current of the third wave was diffusion current, but that of the first and the second waves contained a little kinetic current.

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