【作者】 王继红； 王云翘； 胡皆汉； 王胜；

【Author】 Wang Jihong Wang Yunqiao Wang Sheng (Light Industry Institute,Dalian) Hu Jiehan (Institute of Chemical Physics,Academia Sinica,Dalian)

【机构】 大连轻工业学院化工系； 中国科学院大连化学物理研究所； 大连啤酒厂；

【摘要】 <正>抗坏血酸（VC）是人体生长不可缺少的物质,而Cu²⁺又是抗坏血酸氧化酶的一个辅助因子。其络合作用虽已有许多研究,但用UV方法考察尚未见报道。本文用UV方法考察了不同配比的Cu²⁺—抗坏由酸结合物的结构。实验.采用岛津UV—240可见紫外分光光度计.配制5mMCuCl₂·2H₂O溶液,5mM抗坏血酸溶液,按一定克分子比进行配制。用1MNaOH调P值,其特征UV谱如图1、图2、图3所示:更多还原

【Abstract】 Ascorbic acid is an essential material for human body growth,and Cu²⁺ is a cofactor of ascorbic acid oxidase.The study of Cu²⁺—ascorbic acid complex process has not been done by UV.The Cu²⁺—ascobic acid complex process in different acidity solution was studied with the variation In the mole ratio of Cu to ascorbic acid.It Is fund that the complex process was concerned to the acidity of the solution and the mole rado of Cu²⁺ to ascorbic acid.Two complex structures were proposed and two structure models were Infered.更多还原