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Application of Laser-Enhanced Ionization to Flame Temperature Determination

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Abstract:

We have both theoretically and experimentally demonstrated that the laser-enhanced ionization (LEI) technique can be a simple, alternative method for flame temperature determination in an atmospheric air/acetylene flame. A three-level model of rate equations is developed to determine a flame temperature based upon the Boltzmann population of the ground fine structures of the analyte selected. A Ga sample was used for the test, and the LEI signal was measured with excitation to various intermediate states. The determined flame temperatures are very consistent with each other and also with those previously reported.

Keywords: Atomic absorption spectroscopy; Flame spectroscopy

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/0003702914335904

Affiliations: 1: Department of Chemistry, National Taiwan University and Institute of Atomic and Molecular Sciences, Academia Sinica, P.O. Box 23-166, Taipei, Taiwan 10764, Republic of China 2: Institute of Atomic and Molecular Sciences, Academia Sinica, P.O. Box 23-166, Taipei, Taiwan 10764, Republic of China

Publication date: September 1, 1991

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