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DC Field | Value | Language |
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dc.contributor.author | Shelar, V.M. | |
dc.contributor.author | Hegde, G.M. | |
dc.contributor.author | Umesh, G. | |
dc.contributor.author | Jagadeesh, G. | |
dc.contributor.author | Reddy, K.P.J. | |
dc.date.accessioned | 2020-03-31T08:31:16Z | - |
dc.date.available | 2020-03-31T08:31:16Z | - |
dc.date.issued | 2014 | |
dc.identifier.citation | Spectroscopy Letters, 2014, Vol.47, 1, pp.12-18 | en_US |
dc.identifier.uri | http://idr.nitk.ac.in/jspui/handle/123456789/11392 | - |
dc.description.abstract | In 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.title | Gas phase oxygen quenching studies of ketone tracers for laser-induced fluorescence applications in nitrogen bath gas | en_US |
dc.type | Article | en_US |
Appears in Collections: | 1. Journal Articles |
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