| 过硫酸钾存在下曲匹布通极谱平行催化波的研究及其应用 |
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| 引用本文： | 马淮凌,徐茂田,徐海云,韦秀华.过硫酸钾存在下曲匹布通极谱平行催化波的研究及其应用[J].分析试验室,2010,29(3). |
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| 作者姓名： | 马淮凌 徐茂田 徐海云 韦秀华 |
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| 作者单位： | 商丘师范学院化学系,商丘,476000 |
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| 基金项目： | 国家自然科学基金(20775047);;河南省教育厅基础研究(2007150033);;商丘师范学院教育教学改革研究项目资助 |
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| 摘 要： | 采用平行催化波法、循环伏安法等手段研究了在KH2PO4-Na2HPO4介质中过二硫酸钾存在下曲匹布通平行催化波产生的机理。曲匹布通的羰基官能团C=O在KH2PO4-Na2HPO4介质中以2e-,2H+方式极谱还原,产生了单个还原波。加入氧化剂过二硫酸钾时,曲匹布通还原中间体自由基在电极表面上能被过二硫酸钾及其中间还原体硫酸根阴离子自由基氧化,再生为原可还原基团C=O,从而产生了曲匹布通的平行催化波。基于此,提出了一种测定曲匹布通的新方法。
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| 关 键 词： | 曲匹布通 过二硫酸钾 极谱平行催化波 |
Study on the polarographic parallel catalytic wave of trepibutone in the presence of persulfate and its application in pharmaceutical analysis |
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| MA Huai-ling,XU Mao-tian,XU Hai-yun,WEI Xiu-hua.Study on the polarographic parallel catalytic wave of trepibutone in the presence of persulfate and its application in pharmaceutical analysis[J].Chinese Journal of Analysis Laboratory,2010,29(3). |
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| Authors: | MA Huai-ling XU Mao-tian XU Hai-yun WEI Xiu-hua |
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| Institution: | Chemistry Department;Shangqiu Normal College;Shangqiu 476000 |
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| Abstract: | The parallel catalytic wave of trepibutone in the presence of persulfate was studied by linear potential scan polarography and cyclic voltammetry.The reduction wave of trepibutone appearee at ca.-1.12 V(vs.SCE) in 0.20 mol/L KH2PO4-Na2HPO4(pH 5.5) supporting electrolyte.In the presence of K2S2O8,the reduction wave is catalyzed to produce a parallel catalytic wave.Based on the catalytic wave,a novel method for the determination of trepibutone is proposed.The peak current of the catalytic wave is rectilinear ... |
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| Keywords: | Trepibutone Persulfate Polarographic parallel catalytic wave |
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