Measurement of hydrogen sulphide gas using fluorescence quenching

Ashutosh Sharma; Zulfiqur Ali

doi:10.1117/12.59351

Measurement of hydrogen sulphide gas using fluorescence quenching

Ashutosh Sharma, Zulfiqur Ali

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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Abstract

The quenching of the fluorescence of thionine by hydrogen sulphide is reported. The extremely efficient quenching process is attributed to reversible reduction of the thionine dye both in the ground and the excited state leading to the formation of a non-fluorescent semi/leuko thionine. Other toxic gases, namely SO2, HCl, and NH3, were found to have no effect on thionine. Potential analytical applications of this discovery, including development of a fiberoptic H2 sensor, are discussed.

Original language	English
Title of host publication	Environmental and process monitoring technologies
Pages	112-116
DOIs	https://doi.org/10.1117/12.59351
Publication status	Published - 1992
Event	Environmental and Process Monitoring Technologies Conference 1992 - Los Angeles, United States Duration: 20 Jan 1992 → 22 Jan 1992

Conference

Conference	Environmental and Process Monitoring Technologies Conference 1992
Country/Territory	United States
City	Los Angeles
Period	20/01/92 → 22/01/92

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10.1117/12.59351

Full textLicence: CC BY-NC-ND

http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=984248

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title = "Measurement of hydrogen sulphide gas using fluorescence quenching",

abstract = "The quenching of the fluorescence of thionine by hydrogen sulphide is reported. The extremely efficient quenching process is attributed to reversible reduction of the thionine dye both in the ground and the excited state leading to the formation of a non-fluorescent semi/leuko thionine. Other toxic gases, namely SO2, HCl, and NH3, were found to have no effect on thionine. Potential analytical applications of this discovery, including development of a fiberoptic H2 sensor, are discussed.",

author = "Ashutosh Sharma and Zulfiqur Ali",

note = "Author can archive publisher's version/PDF. ; Environmental and Process Monitoring Technologies Conference 1992 ; Conference date: 20-01-1992 Through 22-01-1992",

year = "1992",

doi = "10.1117/12.59351",

language = "English",

isbn = "0819407836",

pages = "112--116",

booktitle = "Environmental and process monitoring technologies",

}

TY - GEN

T1 - Measurement of hydrogen sulphide gas using fluorescence quenching

AU - Sharma, Ashutosh

AU - Ali, Zulfiqur

N1 - Author can archive publisher's version/PDF.

PY - 1992

Y1 - 1992

N2 - The quenching of the fluorescence of thionine by hydrogen sulphide is reported. The extremely efficient quenching process is attributed to reversible reduction of the thionine dye both in the ground and the excited state leading to the formation of a non-fluorescent semi/leuko thionine. Other toxic gases, namely SO2, HCl, and NH3, were found to have no effect on thionine. Potential analytical applications of this discovery, including development of a fiberoptic H2 sensor, are discussed.

AB - The quenching of the fluorescence of thionine by hydrogen sulphide is reported. The extremely efficient quenching process is attributed to reversible reduction of the thionine dye both in the ground and the excited state leading to the formation of a non-fluorescent semi/leuko thionine. Other toxic gases, namely SO2, HCl, and NH3, were found to have no effect on thionine. Potential analytical applications of this discovery, including development of a fiberoptic H2 sensor, are discussed.

U2 - 10.1117/12.59351

DO - 10.1117/12.59351

M3 - Conference contribution

SN - 0819407836

SP - 112

EP - 116

BT - Environmental and process monitoring technologies

T2 - Environmental and Process Monitoring Technologies Conference 1992

Y2 - 20 January 1992 through 22 January 1992

ER -

Measurement of hydrogen sulphide gas using fluorescence quenching

Abstract

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