Title
Calculation of the spectral line profile broadening parameter in graphite furnace atomic absorption spectrometry Calculation of the spectral line profile broadening parameter in graphite furnace atomic absorption spectrometry
Author
Faculty/Department
Faculty of Sciences. Chemistry
Publication type
article
Publication
Subject
Chemistry
Source (journal)
CANADIAN JOURNAL OF ANALYTICAL SCIENCES AND SPECTROSCOPY
Volume/pages
53(2008) :2 , p. 52-58
ISSN
1205-6685
ISI
000260130600002
Carrier
E
Target language
English (eng)
Abstract
A polynomial approach is applied for a number of data from the Posener-tables to calculate the values of the intensity distribution function of atomic absorption lines - H(a, 0.726a) - at the tabulated damping-parameter values with an error not worse than 0.044 %. For the resultant H(a, 0.726a) data, the ninth and sixth order polynomials can be fitted according to the damping parameter range of 0-2, and 2-10, respectively, which results in a minimal error of approximation. The derived functions are simply applicable to the calculation of any H(a, 0.726a) value belonging to a damping-parameter of any arbitrarily selected spectral line, implying the influence of Doppler- and Lorentz-broadening. The overall error of the described method is lower than 0.4 %.
E-info
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