| 流动注射化学发光增强法测定单宁酸 |
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| 引用本文： | 李世凤,崔华,孙玉刚,林祥钦.流动注射化学发光增强法测定单宁酸[J].分析化学,2001,29(3):333-335. |
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| 作者姓名： | 李世凤 崔华 孙玉刚 林祥钦 |
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| 作者单位： | 中国科学技术大学化学系, |
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| 摘 要： | 发现单宁酸对Luminol KIO4 Mn2 +碱性体系的化学发光有较强增敏作用 ,据此建立了流动注射化学发光增强法测定单宁酸的新方法。该法简单、快速、线性范围宽 ,测定单宁酸的检出限为 9× 10 -9mol/L ;线性范围为 3× 10 -8～ 5× 10 -6mol/L ,对于 1× 10 -6mol/L单宁酸测定的相对标准偏差 1 5 % (n =11)。应用于五倍子中单宁酸的测定 ,结果满意。
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| 关 键 词： | 鲁米诺 单宁酸 流动注射 化学发光增强 中药分析 五倍子 化学发光抑制法 |
Flow Injection Analysis of Tannic Acid withEnhanced Chemiluminescent Detection |
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| Li Shifeng,CUI Hua,Sun Yugang,Lin Xiangqin.Flow Injection Analysis of Tannic Acid withEnhanced Chemiluminescent Detection[J].Chinese Journal of Analytical Chemistry,2001,29(3):333-335. |
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| Authors: | Li Shifeng CUI Hua Sun Yugang Lin Xiangqin |
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| Abstract: | A novel flow injection chemiluminescent enhancement method for the determination of tannic acid based on luminol-KIO4-Mn2＋ system is developed. The method is simple, rapid and effective to determine tannic acid in the range of 3.0×10－8～5.0×10－6 mol/L with a detection limit of 9×10－9 mol/L. The relative standard deviation is 1.5% for the determination of 1.0×10－6 mol/L tannic acid (n=11). The mehtod has been applied to determine the content of tannic acid in Chinese gall with satisfactory results. |
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| Keywords: | Luminol tannic acid flow injection analysis chemiluminescent enhancement |
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