Design of a sulfur dioxide-selective optode membrane based on the fluorescence quenching of anthracene

Kemin Wang; Huihui Zeng; Zhen Qin; Ruqin Yu

doi:10.1117/12.140268

9 March 1993 Design of a sulfur dioxide-selective optode membrane based on the fluorescence quenching of anthracene

Kemin Wang, Huihui Zeng, Zhen Qin, Ruqin Yu

Proceedings Volume 1716, International Conference on Monitoring of Toxic Chemicals and Biomarkers; (1993) https://doi.org/10.1117/12.140268
Event: Environmental Sensing '92, 1992, Berlin, Germany

Abstract

A new reversible optical sensing device is described for the determination of sulfur dioxide based on the fluorescence quenching of anthracene, which is immobilized in plasticized PVC membrane. With the optode membrane described, sulfur dioxide in sample solutions from 6.59 X 10^-3 M to 5.23 X 10^-1 M can be determined. The calibration curve for sulfur dioxide shows a good correlation with the mathematically-derived formalism and thus confirms the theoretically expected behavior. Besides a high reproducibility of the optical signals, the very short response times less than 30 sec. were realized. The optode membrane presented exhibits a good selectivity for sulfur dioxide.

Citation Download Citation

Kemin Wang, Huihui Zeng, Zhen Qin, and Ruqin Yu "Design of a sulfur dioxide-selective optode membrane based on the fluorescence quenching of anthracene", Proc. SPIE 1716, International Conference on Monitoring of Toxic Chemicals and Biomarkers, (9 March 1993); https://doi.org/10.1117/12.140268

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