Measurement of ammonia gas using fluorescence quenching

Ashutosh Sharma; Zulfiqur Ali; Irving J. Higgins

doi:10.1117/12.59347

1 May 1992 Measurement of ammonia gas using fluorescence quenching

Ashutosh Sharma, Zulfiqur Ali, Irving J. Higgins

Author Affiliations +

Proceedings Volume 1637, Environmental and Process Monitoring Technologies; (1992) https://doi.org/10.1117/12.59347
Event: OE/LASE '92, 1992, Los Angeles, CA, United States

Abstract

Fluorescence quenching of 9-amino acridine hydrochloride (9-AAH) by ammonia was found to be extremely efficient. Quenching data were analyzed using the Stem-Volmer relation. The method offers a limit of detection of 0.1 ppm over a useful range of 0-10 ppm. Fluorescence of the indicator 9-AAH showed a little or no mtereference from acidic gases, such as SO₂, HC₁ and H₂S. The fmding is considered to be of potential utility for the development of a fibre optic ammonia sensor and other methods of its quantitative determination.

Citation Download Citation

Ashutosh Sharma, Zulfiqur Ali, and Irving J. Higgins "Measurement of ammonia gas using fluorescence quenching", Proc. SPIE 1637, Environmental and Process Monitoring Technologies, (1 May 1992); https://doi.org/10.1117/12.59347

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