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^(-9)mol/L^10^(－6)mol/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。
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.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
2000年第1期50-52,共3页
Chinese Journal of Analytical Chemistry
基金
辽宁省教委基金
关键词
荧光熄灭
硫阴离子
荧光素汞
光化学敏感膜
Fluorescence quenching, sulfide, mercury fluorescenin, optical chemical sensing membrane
