| 催化H2O2氧化2, 3, 4, 9-四氢-9-羟基-1, 10-蒽醌荧光猝灭法测定痕量砷 |
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| 引用本文： | 胡世荣,刘佳铭.催化H2O2氧化2, 3, 4, 9-四氢-9-羟基-1, 10-蒽醌荧光猝灭法测定痕量砷[J].分析测试技术与仪器,2006,12(1):3-7. |
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| 作者姓名： | 胡世荣 刘佳铭 |
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| 作者单位： | 漳州师范学院,化学系,福建,漳州,363000 |
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| 摘 要： | 基于HCl介质中和α,α-联吡啶存在下,As(V)可催化H2O2氧化2,3,4,9-四氢-9-羟基-1,10-蒽醌(R)转化无荧光化合物,导致体系荧光急剧猝灭,据此建立了催化H2O2氧化R荧光猝灭法测定痕量砷的新方法.在最佳条件下,As(V)含量在0.004 0~0.400 0 ng/mL范围内与荧光光强度的△If值符合比尔定律,工作曲线的回归方程△If=11.94 233.7 CAs(V)(ng/mL),n=7,相关系数r=0.9994,检出限为6.2×10-13g As(V)/mL,n=11.对0.004 0和0.400 0 ng/mL As(V)分别进行11次的测定,其RSD为2.6%与3.8%.该方法重现性好、灵敏、准确,用于实际中砷含量的测定,结果满意.还报道了R的合成,并借助核磁共振谱、红外光谱及质谱等谱学方法确定了其结构.
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| 关 键 词： | 砷 催化荧光猝灭法 α α-联吡啶 蒽醌 |
| 文章编号： | 1006-3757（2006）01-0003-05 |
| 收稿时间： | 2005-11-01 |
| 修稿时间： | 2005-12-12 |
Determination of Trace Arsenic by Fluorescence Quenching Method Based on Catalysis of Hydrogen Peroxide Oxidizing 2, 3, 4, 9-tetrahydro-9-hydroxy-1, 10-anthraquinone |
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| HU Shi-rong and LIU Jia-ming.Determination of Trace Arsenic by Fluorescence Quenching Method Based on Catalysis of Hydrogen Peroxide Oxidizing 2, 3, 4, 9-tetrahydro-9-hydroxy-1, 10-anthraquinone[J].Analysis and Testing Technology and Instruments,2006,12(1):3-7. |
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| Authors: | HU Shi-rong and LIU Jia-ming |
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| Institution: | Department of Chemistry, ZhangZhou Normal College, ZhangZhou 363000, China;Department of Chemistry, ZhangZhou Normal College, ZhangZhou 363000, China |
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