| 钛(Ⅳ)-槲皮素-氯酸盐体系极谱催化波的研究 |
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| 引用本文： | 拓宏桂,贺维军,李南强.钛(Ⅳ)-槲皮素-氯酸盐体系极谱催化波的研究[J].北京大学学报(自然科学版),1996,32(2):163-167. |
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| 作者姓名： | 拓宏桂 贺维军 李南强 |
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| 作者单位： | 北京大学化学系，北京，100871 |
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| 摘 要： | 在pH3.2氯乙酸盐缓冲底液中，用单扫极谱法可获得灵敏的钛(Ⅳ)-槲皮素-氯酸盐催化波，其二阶导数检测限达7.0×10-9mol/L。已成功地应用于纯金属镁中10-4%钛的测定，并测得电活性络合物的组成为Ti(Ⅳ)∶槲皮素＝1∶1，平行催化反应的速率常数k=4.8×105(mol/L)-1·s-1。
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| 关 键 词： | 钛 槲皮素 极谱催化波 单扫极谱法 |
| 收稿时间： | 1995-05-05 |
Studies on the Polarographic Catalytic Wave of Titanium-Quercetin-NaClO_3 System |
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| TUO Honggui,HE Weijun,LI Nanqiang.Studies on the Polarographic Catalytic Wave of Titanium-Quercetin-NaClO_3 System[J].Acta Scientiarum Naturalium Universitatis Pekinensis,1996,32(2):163-167. |
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| Authors: | TUO Honggui HE Weijun LI Nanqiang |
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| Affiliation: | Department of Chemistry, Peking University, Beijing, 100871 |
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| Abstract: | In 0.1 mol/L ClCH2CＯＯＨ-ClCH2ＣＯＯＮa buffer solution, at pH3.2, a sensitive catalytic wave of Ti(Ⅳ)-quercetin-NaClO3 is obtained by using single sweep polarography. The detection limit of titanium is 7.0×10-9mol/L. It was used to determine trace titanium in pure metallic magnesium. The composition of complex has been detected as Ti(Ⅳ)∶Qu=1∶1, and the rate constant of catalytic reaction k=4.8×105(mol/L)-1·s-1 has been determined. |
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| Keywords: | titanium quercetin catalytic wave single-sweep polarography |
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