Title
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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