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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 37, Number 7
JKCSEZ 37(7)
February 20, 1993 

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

N,N-Dimethylformamide 용액 중에서 Zn(Ⅱ)-Bilirubin 착물의 전기화학적 거동
Author
Zun-Ung Bae, Heung-Lark Lee, Tae-Myung Park, Moo-Lyong Seo

배준웅, 이흥락, 박태명, 서무룡
Keywords
Abstract
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.

Page
672 - 676
Full Text
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