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KMID : 1059519930370070672
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Journal of the Korean Chemical Society
1993 Volume.37 No. 7 p.672 ~ p.676
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Electrochemical Behavior of Zn(II)-Bilirubin Complex in N,N-Dimethylformamide
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Bae Zun-Ung
Lee Heung-Lark
Park Tae-Myung
Seo Moo-Lyong
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Abstract
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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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