Hydroxyl density measurement by two-beam UV-LED absorption spectroscopy in an atmospheric-pressure Ar-H<inf>2</inf>O<inf>2</inf> vapor HF plasma jet

© 2019, Chiang Mai University. All rights reserved. Atmospheric pressure plasma jets (APPJs) are sources of biologically active oxygen and nitrogen species. OH radical is one of the most reactive of Reactive oxygen species and plays crucial role in plasma chemistry at atmospheric pressure. The OH is...

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Main Authors: Wasin Nupangtha, Athipong Ngamjarurojana, Mudtorlep Nisoa, Dheerawan Boonyawan
Format: Journal
Published: 2020
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http://cmuir.cmu.ac.th/jspui/handle/6653943832/67642
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-676422020-04-02T15:19:39Z Hydroxyl density measurement by two-beam UV-LED absorption spectroscopy in an atmospheric-pressure Ar-H<inf>2</inf>O<inf>2</inf> vapor HF plasma jet Wasin Nupangtha Athipong Ngamjarurojana Mudtorlep Nisoa Dheerawan Boonyawan Biochemistry, Genetics and Molecular Biology Chemistry Materials Science Mathematics Physics and Astronomy © 2019, Chiang Mai University. All rights reserved. Atmospheric pressure plasma jets (APPJs) are sources of biologically active oxygen and nitrogen species. OH radical is one of the most reactive of Reactive oxygen species and plays crucial role in plasma chemistry at atmospheric pressure. The OH is also the precursor of hydrogen peroxide (H2O2), a major species responsible in part for plasma induced liquid phase reactivity. These experiments involve development setup of two-beam UV-LED absorption spectroscopy and its configuration. The OH densities are obtained by broadband UV absorption in a 330 kHz radio-frequency (rf) driven APPJ device operated with H2O2 vapor admixed to Argon with variation of rf powers. The use of a high intensity around 310 nm light-emitting diode as a light source and a light source and a 300 mm Czerny-Turner spectrometer 300i made the estimation of the total OH density possible by simultaneously measuring the absorption rates of different spectrally resolved rotational lines of the OH(A-X) transition. 2020-04-02T14:58:33Z 2020-04-02T14:58:33Z 2019-01-01 Journal 01252526 2-s2.0-85073709527 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85073709527&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/67642
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
topic Biochemistry, Genetics and Molecular Biology
Chemistry
Materials Science
Mathematics
Physics and Astronomy
spellingShingle Biochemistry, Genetics and Molecular Biology
Chemistry
Materials Science
Mathematics
Physics and Astronomy
Wasin Nupangtha
Athipong Ngamjarurojana
Mudtorlep Nisoa
Dheerawan Boonyawan
Hydroxyl density measurement by two-beam UV-LED absorption spectroscopy in an atmospheric-pressure Ar-H<inf>2</inf>O<inf>2</inf> vapor HF plasma jet
description © 2019, Chiang Mai University. All rights reserved. Atmospheric pressure plasma jets (APPJs) are sources of biologically active oxygen and nitrogen species. OH radical is one of the most reactive of Reactive oxygen species and plays crucial role in plasma chemistry at atmospheric pressure. The OH is also the precursor of hydrogen peroxide (H2O2), a major species responsible in part for plasma induced liquid phase reactivity. These experiments involve development setup of two-beam UV-LED absorption spectroscopy and its configuration. The OH densities are obtained by broadband UV absorption in a 330 kHz radio-frequency (rf) driven APPJ device operated with H2O2 vapor admixed to Argon with variation of rf powers. The use of a high intensity around 310 nm light-emitting diode as a light source and a light source and a 300 mm Czerny-Turner spectrometer 300i made the estimation of the total OH density possible by simultaneously measuring the absorption rates of different spectrally resolved rotational lines of the OH(A-X) transition.
format Journal
author Wasin Nupangtha
Athipong Ngamjarurojana
Mudtorlep Nisoa
Dheerawan Boonyawan
author_facet Wasin Nupangtha
Athipong Ngamjarurojana
Mudtorlep Nisoa
Dheerawan Boonyawan
author_sort Wasin Nupangtha
title Hydroxyl density measurement by two-beam UV-LED absorption spectroscopy in an atmospheric-pressure Ar-H<inf>2</inf>O<inf>2</inf> vapor HF plasma jet
title_short Hydroxyl density measurement by two-beam UV-LED absorption spectroscopy in an atmospheric-pressure Ar-H<inf>2</inf>O<inf>2</inf> vapor HF plasma jet
title_full Hydroxyl density measurement by two-beam UV-LED absorption spectroscopy in an atmospheric-pressure Ar-H<inf>2</inf>O<inf>2</inf> vapor HF plasma jet
title_fullStr Hydroxyl density measurement by two-beam UV-LED absorption spectroscopy in an atmospheric-pressure Ar-H<inf>2</inf>O<inf>2</inf> vapor HF plasma jet
title_full_unstemmed Hydroxyl density measurement by two-beam UV-LED absorption spectroscopy in an atmospheric-pressure Ar-H<inf>2</inf>O<inf>2</inf> vapor HF plasma jet
title_sort hydroxyl density measurement by two-beam uv-led absorption spectroscopy in an atmospheric-pressure ar-h<inf>2</inf>o<inf>2</inf> vapor hf plasma jet
publishDate 2020
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85073709527&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/67642
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