| 基于荧光熄灭的硫阴离子选择性光化学敏感膜 |
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| 引用本文： | 杨梅,张文伟,周丹红,赵健,陶淑敏.基于荧光熄灭的硫阴离子选择性光化学敏感膜[J].分析化学,2000,28(1):50-52. |
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| 作者姓名： | 杨梅 张文伟 周丹红 赵健 陶淑敏 |
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| 作者单位： | 辽宁师范大学化学系 |
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| 摘 要： | 基于Ｓ＾２－对固定于增塑的聚氯乙烯膜上的荧光素汞的荧光熄灭，研制了Ｓ＾２－选择性光化学敏感膜。该膜测定Ｓ＾２－的浓度范围为１０＾－９ｍｏｌ／Ｌ～１０＾－６ｍｏｌ／Ｌ，其荧光信号具有选择性强、重现性高且可逆的特点，适用于水相中硫化物的测定。
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| 关 键 词： | 荧光熄灭 硫阴离子 荧光素汞 光化学敏感膜 |
A Sulfide-Selective Sensing Membrane Based on Fluorescence Quenching |
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| Yang Mei, Zhang Wenwei, Zhou Danhong,Zhao Jian, Tao Shumin.A Sulfide-Selective Sensing Membrane Based on Fluorescence Quenching[J].Chinese Journal of Analytical Chemistry,2000,28(1):50-52. |
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| Authors: | Yang Mei Zhang Wenwei Zhou Danhong Zhao Jian Tao Shumin |
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| Abstract: | A new reversible optical sensing membrane for the determination of S~(2-) based on fluoreascence queching of mercury fluorescein dissovled in plasticized polyvinyl chloride has been developed. With the optimum sensing membrane described, the concentration of10~(-6) mol/L to 10~(-9) mol/L of S~(2-) can be determined. Basides, its optical signals exhibit higg reproducibility and a good selectivity. It can be used for determination of sulfide in water Samples. |
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| Keywords: | Fluorescence quenching sulfide mercury fluorescenin optical chemical sensing membrane |
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