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Proceedings Paper

Design of a sulfur dioxide-selective optode membrane based on the fluorescence quenching of anthracene
Author(s): Kemin Wang; Huihui Zeng; Zhen Qin; Ruqin Yu
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Paper 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.

Paper Details

Date Published: 9 March 1993
PDF: 6 pages
Proc. SPIE 1716, International Conference on Monitoring of Toxic Chemicals and Biomarkers, (9 March 1993); doi: 10.1117/12.140268
Show Author Affiliations
Kemin Wang, Hunan Univ. (China)
Huihui Zeng, Hunan Univ. (China)
Zhen Qin, Hunan Univ. (China)
Ruqin Yu, Hunan Univ. (China)


Published in SPIE Proceedings Vol. 1716:
International Conference on Monitoring of Toxic Chemicals and Biomarkers

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