Studies on a New Fluorescence Fiber Optic Sensor for Sulfur Dioxide

Chem. J. Chinese Universities ›› 1993, Vol. 14 ›› Issue (4): 476.

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Studies on a New Fluorescence Fiber Optic Sensor for Sulfur Dioxide

ZHU Yuan-Bao, WANG Ke-Min, XU Yuan-Jin, HE Shuang-E, LI Xun

Department of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082

Received:1992-09-01 Revised:1992-12-10 Online:1993-04-24 Published:1993-04-24

Abstract

Abstract: Anew fluorescence fiber optic sensor for sulfur dioxide measurement has been described.Quinine dissolving in internal solution was used as a sensitive material.The internal solution layer was separated from the aqueous solution by a gas-permeable membrane.The response range of the sensor for sulfur dioxide is from 3×10^-4 mol/Ldown to 3×10^-6 mol/L.Reproducibility, stability, resp-ponse time and selectivity of the new fiber optic sensor are reported.With this sensor, practical samples containing sulfur dioxide were measured.The results are compared to measurments with iodime-try.

Key words: Gas sensor, Sulfur dioxide fiber optic sensor, Fluorimetry

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ZHU Yuan-Bao, WANG Ke-Min, XU Yuan-Jin, HE Shuang-E, LI Xun . Studies on a New Fluorescence Fiber Optic Sensor for Sulfur Dioxide[J]. Chem. J. Chinese Universities, 1993, 14(4): 476.

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Studies on a New Fluorescence Fiber Optic Sensor for Sulfur Dioxide

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