| 固体基质室温燐光猝灭测定痕量甲醛 |
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| 引用本文： | 郑志勇.固体基质室温燐光猝灭测定痕量甲醛[J].漳州职业技术学院学报,2008,10(4). |
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| 作者姓名： | 郑志勇 |
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| 摘 要： | 基于R(HFinCl4I4)在滤纸同体基质上能发射强而稳定的室温燐光,KBrO3氧化R发生室温燐光猝灭,HCHO与KBrO3反应生成Br2进一步氧化R,导致室温燐光剧烈猝灭,HCHO含量△Ip值呈良好线性关系,据此建立了HFinCl4I4-KBrO3-Tween-80体系同体基质室温燐光猝灭测定痕量甲醛的新方法.加比不加Tween-80时,△Ip增大9.1倍.本方法的线性范围为0.016～1.6(fg/spot)(对应浓度为0.040～4.0pg/mL,0.40pL/spot),工作曲线回归方程△Ip=136.6+28.28mHCHO(fg/spot),n=6,相关系数r=0.9935,检出限为4.5ag/spot(对应浓度1.1x10-44g/mL),灵敏、简便、快速,用于实际样品中痕量甲醛的测定,结果满意.同时探讨了HFinCI4I4-KBrOy-Tween-80体系固体基质室温燐光猝灭法测定甲醛的反应机理.
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| 关 键 词： | 甲醛 同体基质室温燐光猝灭法 |
Determination of trace formaldehyde by solid substrate-room temperature phosphorescence quenching method based on the rose bengal-potassium bromate-tween-80 system |
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| ZHENG Zhi-yong.Determination of trace formaldehyde by solid substrate-room temperature phosphorescence quenching method based on the rose bengal-potassium bromate-tween-80 system[J].Journal of Zhangzhou Technical Institute,2008,10(4). |
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| Authors: | ZHENG Zhi-yong |
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| Abstract: | |
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| Keywords: | HFinCl4I4 Tween-80 |
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