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Type: Journal article
Title: Solvent effects on two-line atomic fluorescence of indium
Author: Chan, Q.
Medwell, P.
Kalt, P.
Alwahabi, Z.
Dally, B.
Nathan, G.
Citation: Applied Optics, 2010; 49(8):1257-1266
Publisher: Optical Society of America
Issue Date: 2010
ISSN: 1559-128X
Statement of
Qing N. Chan, Paul R. Medwell, Peter A. M. Kalt, Zeyad T. Alwahabi, Bassam B. Dally, and Graham J. Nathan
Abstract: We aim to investigate the potential of four different organic solvents, namely, acetone, ethanol, methanol, and isopropanol, and the organic-solvent-water mixtures as a seeding medium for the two-line atomic fluorescence technique. Water is used as the reference case. Indium, which has been previously shown to have suitable spectroscopic attributes, is chosen as the thermometry species in the present study. Acetone and methanol are shown to enhance the fluorescence signal intensity the most (approximately threefold to fivefold at stoichiometric conditions) when used. Acetone and methanol are shown to improve the fluorescence emission over the entire stoichiometric envelope of flame, most significantly in the rich combustion region, as well as a twofold enhancement in the signal-to-noise ratio.
Rights: © 2010 Optical Society of America
DOI: 10.1364/AO.49.001257
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