四羧基酞菁配合物修饰电极氧化草酸及L－半胱氨酸的活性

Catalytic Activites of Electrodes Modified by Metal Phthalocyanines for Electrooxidation of Oxalic Acid and L Cysteine

四羧基酞菁配合物修饰电极氧化草酸及Ｌ－半胱氨酸的活性董国孝李纪生（中国科学院化学研究所，北京１０００８０）庄瑞舫（南京大学配位化学研究所，南京２１００９３）关键词四羧基酞菁修饰电极草酸Ｌ－半胱氨酸循环伏安法金属酞菁配合物由于结构稳定、色彩鲜艳，已作为...

Chemically modified electrodes (CMEs) by 2,9,16,23 tetracarboxylphthalocyanine (H 2TcPc) and its Co(Ⅱ), Ru(Ⅲ), Cu(Ⅱ), Fe(Ⅲ) complexes (CoTcPc, RuTcPc, CuTcPc, FeTcPc) were prepared by irreversible adsorption. Catalytic activities of these CMEs for electrooxidation of oxalic acid and L cysteine in aqueous solution were investigated with cyclic voltammogram. Experimental results showed that all CMEs but H 2TcPc CME had activities to the electrooxidation of oxalic acid, there are good linear relationships between peak current (I p.a. ) and oxalic acid concentration except FeTcPc CME. Only CoTcPc CME had activity to the electrooxidation of L cysteine, there is a good linear relationship between peak current(I p.a. ) and L cysteine concentration.