A highly selective fluorescent sensor for Cu super(2+) based on 2-(2'- hydroxyphenyl)benzoxazole in a poly(vinyl chloride) matrix

This paper describes a copper selective optical chemical sensor based on static quenching of the fluorescence of 2-(2'-hydroxyphenyl)benzoxazole entrapped in a poly(vinyl chloride) (PVC) membrane. The effect of the composition of the sensing membrane was studied, and experimental conditions wer...

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Bibliographic Details
Published in:Analytica chimica acta 2006-05, Vol.567 (2), p.189-195
Main Authors: Zhang, Xiao-Bing, Peng, Jing, He, Chun-Lian, Shen, Guo-Li, Yu, Ru-Qin
Format: Article
Language:English
Subjects:
Freshwater
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Summary:This paper describes a copper selective optical chemical sensor based on static quenching of the fluorescence of 2-(2'-hydroxyphenyl)benzoxazole entrapped in a poly(vinyl chloride) (PVC) membrane. The effect of the composition of the sensing membrane was studied, and experimental conditions were optimized. The sensors exhibit stable response over the concentration range from 4.0 x 10 super(-8) M to 5.0 x 10 super(-5) M Cu super(2+) at pH 4.0-6.5, and a high selectivity. The response time for Cu super(2+) with concentration
ISSN:0003-2670
DOI:10.1016/j.aca.2006.03.025