Please use this identifier to cite or link to this item: https://idr.l3.nitk.ac.in/jspui/handle/123456789/11392
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dc.contributor.authorShelar, V.M.
dc.contributor.authorHegde, G.M.
dc.contributor.authorUmesh, G.
dc.contributor.authorJagadeesh, G.
dc.contributor.authorReddy, K.P.J.
dc.date.accessioned2020-03-31T08:31:16Z-
dc.date.available2020-03-31T08:31:16Z-
dc.date.issued2014
dc.identifier.citationSpectroscopy Letters, 2014, Vol.47, 1, pp.12-18en_US
dc.identifier.urihttp://idr.nitk.ac.in/jspui/handle/123456789/11392-
dc.description.abstractIn this paper we report the quantitative oxygen quenching effect on laser-induced fluorescence of acetone, methyl ethyl ketone, and 3-pentanone at low pressures (?700 torr) with oxygen partial pressures up to 450 torr. Nitrogen was used as a bath gas in which these molecular tracers were added in different quantities according to their vapor pressure at room temperature. These tracers were excited by using a frequency-quadrupled, Q-switched, Nd:YAG laser (266 nm). Stern-Volmer plots were found to be linear for all the tracers, suggesting that quenching is collisional in nature. Stern-Volmer coefficients (ksv) and quenching rate constants (kq) were calculated from Stern-Volmer plots. The effects of oxygen on the laser-induced fluorescence of acetone, methyl ethyl ketone, and 3-pentanone were compared with each other. Further, the Smoluchowski theory was used to calculate the quenching parameters and compared with the experimental results. Copyright Taylor & Francis Group, LLC.en_US
dc.titleGas phase oxygen quenching studies of ketone tracers for laser-induced fluorescence applications in nitrogen bath gasen_US
dc.typeArticleen_US
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