CAJ | 학술논문

用紫外分光光度法和循环伏安法考察了镉与meso（4-磺基苯)卟啉在强碱性溶液中形成的络合物的特性。结果表明，加入Cd(Ⅱ)后该卟啉的索瑞特(Soret)吸收带发生发红移，循环伏安图上出现了新的还原峰，峰电位为－1．20V（vs.SCE),络合物的络合比为1∶1，稳定常数β=1.19×107。本文还用多种电化学技术证明了络合物的还原峰电流具有吸附特征；用示波极谱法二阶导数波测试了峰电流与镉离子浓度的关系，结果表明镉离子在3×10－7～1×10－5mol/L的浓度范围内与络合物峰电流有良好的线性关系；并求得了电极反应的电子转移数为2。此外本文还对络合物的电极反应机理进行了探讨
용자외분광광도법화순배복안법고찰료력여meso（4-광기분)계람재강감성용액중형성적락합물적특성。결과표명，가입Cd(Ⅱ)후해계람적색서특(Soret)흡수대발생발홍이，순배복안도상출현료신적환원봉，봉전위위－1．20V（vs.SCE),락합물적락합비위1∶1，은정상수β=1.19×107。본문환용다충전화학기술증명료락합물적환원봉전류구유흡부특정；용시파겁보법이계도수파측시료봉전류여력리자농도적관계，결과표명력리자재3×10－7～1×10－5mol/L적농도범위내여락합물봉전류유량호적선성관계；병구득료전겁반응적전자전이수위2。차외본문환대락합물적전겁반응궤리진행료탐토
The Polarographic and voltammetric behavior of Cd (Ⅱ)-meso-tetrakis(p-sulfophenyl)prophyrin (TPPS4） complex was defined and the cyclic voltammetric peak was obtained at 1.200 V (vs. SCE) in 0.3 mol/L NaoH solution. The characteristics of the peak have been examined in detail and the experimental results prove that the peak has adsorption properties. In addition to the number of electrons transferred in the reaction and the complex ratio, the stability const ant (β=1.19×107) was calculated. The peak current was proportional to the concentration of Cd (Ⅱ) over the rang 3×10－7～1×10－5 mol/L and the limit of detection was 6×10－8 mol/L. Furthermore a possible mechanism was proposed for the reduction of the complex.