| 基于四甲氧基硫杂杯[4]芳烃荧光猝灭的Fe3+光化学传感器研究 |
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| 引用本文： | 钟桐生,段敏,胡赛纯,刘蓉,元红波.基于四甲氧基硫杂杯[4]芳烃荧光猝灭的Fe3+光化学传感器研究[J].湖南城市学院学报(自然科学版),2011,20(1):45-48. |
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| 作者姓名： | 钟桐生 段敏 胡赛纯 刘蓉 元红波 |
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| 作者单位： | 1. 湖南城市学院,化学与环境工程系化工新材料研究所,湖南,益阳,413000
2. 益阳市箴言中学,湖南,益阳,413000 |
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| 基金项目： | 湖南省自然科学基金资助项目(07JJ6068) |
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| 摘 要： | Fe3+对固定于聚氯乙烯(PVC)膜中四甲氧基硫杂杯4]芳烃有荧光猝灭作用,研制成测定光化学传感器,传感器敏感膜的最佳化学组成为:50mgPVC粉、100mgDOS和2.5mg杯芳烃.在最佳pH为7.0的溶液中测定其线性响应范围为5.32×10-8-1.48×10-3mol/L,检出限为1.59×10-8mol/L,...
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| 关 键 词： | 杯芳烃 四甲氧基硫杂杯[4]芳烃 PVC敏感膜 荧光猝灭 |
Study on Optical Chemical Sensor for Iron Ion Based on Fluorescence Quenching of Tc4A-OCH3 |
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| ZHONG Tong-sheng,DUAN Min,HU Sai-chun,LIU Rong,YUAN Hong-bo.Study on Optical Chemical Sensor for Iron Ion Based on Fluorescence Quenching of Tc4A-OCH3[J].Journal of Hunan City University:Natural Science,2011,20(1):45-48. |
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| Authors: | ZHONG Tong-sheng DUAN Min HU Sai-chun LIU Rong YUAN Hong-bo |
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| Institution: | 1(1.Institute of Chemical New Material,Department of Chemical & Environmental Engineering,Hunan City University,Yiyang,Hunan 413000,China;2.Zhen Yan Middle School of Yiyang City,Yiyang,Hunan 413000,China) |
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| Abstract: | An optical chemical sensor was developed for the determination of Fe3+ based on the reversible fluorescence quenching of 5-tret-Butyl-2-methoxy thiacalix4] arene(Tc4A-OCH3) immobilized in a plasticized poly(vinyl chloride)(PVC) membrane.The optimum membrane of the sensor is composed of 50 mg of PVC,100 mg of bis(2-ethytbexyl) sebacate(DOS) and 2.5 mg of 5-tret-Butyl-2-methoxy thiacalix4] arene.The maximum response of the optode membrane for Fe3+ was obtained in pH of 7.0 potassium chloride solution.Under the optimum conditions described,the proposed sensor responds linearly in a concentration range of 5.32×10-8-1.48×10-3 mol/L,with a detection limit of 1.59×10-8 mol/L.The sensing membrane has the advantages of high reproducibility,reversibility of the fluorescence signal and good selectivity.And common inorganic ions do not interfere the determination of mercury. |
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| Keywords: | cup aromatic hydrocarbon 5-tret-Butyl-2-methoxy thiacalix[4] arene PVC membrane fluorescence quenching |
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