| 硫茚酸的吸附伏安特性及其应用 |
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| 引用本文： | 祝保林,张学英,高锦红.硫茚酸的吸附伏安特性及其应用[J].宝鸡文理学院学报(自然科学版),2008,28(3):210-213. |
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| 作者姓名： | 祝保林 张学英 高锦红 |
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| 作者单位： | 渭南师范学院,化学化工系,陕西,渭南,714000;渭南师范学院,化学化工系,陕西,渭南,714000;渭南师范学院,化学化工系,陕西,渭南,714000 |
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| 摘 要： | 目的为了研究硫茚酸（Sulindac）的吸附伏安特性。方法在KHP（pH4．20）底液中，硫茚酸在汞电极上有一线性扫描还原峰，峰电位Epc=-1．21V（VS．Ag／AgCl），该峰具有明显的吸附性。结果吸附粒子为硫茚酸中性分子，测得硫茚酸在汞电极上的饱和吸附量为1．16×10^-10mol／cm^2，每个硫茚酸分子所占电极面积为1．43cm^2，硫茚酸在悬汞电极上的吸附符合Frumkin等温式。测得吸附系数β=1．22×10^6，吸引因素γ=1．02，电子转移数n为2，不可逆吸附的电子转移系数α为0．86，表面电极反应速度常数ks=0．32／s。结论建立了吸附伏安法测定硫茚酸的最佳条件，检出限为1．0×10^-9mol／L，该方法可用于硫茚酸片剂中硫茚酸含量的测定。
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| 关 键 词： | 硫茚酸 吸附溶出伏安法 电化学行为 吸附伏安特性 |
Adsorptive voltammetric behavior of Sulindac and its application |
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| ZHU Bao-lin,ZHANG Xue-ying,GAO Jin-hong.Adsorptive voltammetric behavior of Sulindac and its application[J].Journal of Baoji College of Arts and Science(Natural Science Edition),2008,28(3):210-213. |
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| Authors: | ZHU Bao-lin ZHANG Xue-ying GAO Jin-hong |
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| Institution: | Department of Chemistry and Chemical Engineering;Weinan Teacher's College;Weinan 714000;Shaanxi;China |
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| Abstract: | Aim To study on the adsorptive voltammetric behavior of Sulindac {(Z)-5-fluoro-2-methyl-1-((4-(methylsulfinyl)phenyl)methylene) 1H-indene-3-acetic acid}.Methods In a supporting electrolyte containing KHP(pH 4.20),a reduction peak of Sulindac was observed by linear-sweep voltammetry at Hg electrode.The peak showed a potential of-1.21 V(vs.Ag/AgCl) and adsorptive characteristics.Results The adsorbed species were the neutral molecules of Sulindac.The saturated adsorption amount of Sulindac at Hg eletrode was 1... |
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| Keywords: | Sulindac adsorptive stripping voltammetry electrochemical characteristics adsorptive voltammetry behavior |
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