A SOLID-SOLUTION THEORY FOR MATRIX MODIFICATION IN ELECTROTHERMAL ATOMIC-ABSORPTION SPECTROMETRY

Authors
MANDJUKOV PB TSAKOVSKI SL SIMEONOV VD STRATIS JA
Citation
Pb. Mandjukov et al., A SOLID-SOLUTION THEORY FOR MATRIX MODIFICATION IN ELECTROTHERMAL ATOMIC-ABSORPTION SPECTROMETRY, Spectrochimica acta, Part B: Atomic spectroscopy, 50(13), 1995, pp. 1733-1746
Citations number
45
Categorie Soggetti
Spectroscopy
Journal title
Spectrochimica acta, Part B: Atomic spectroscopy → ACNP
ISSN journal
05848547
Volume
50
Issue
13
Year of publication
1995
Pages
1733 - 1746
Database
ISI
SICI code
0584-8547(1995)50:13<1733:ASTFMM>2.0.ZU;2-W
Abstract
The kinetics of evaporation of the volatile analytes Pb and Cd in the presence of Ce(IV) introduced as the chemical modifier (NH4)(2)Ce(NO3) (6) have been studied. The experimental results obtained are found to be in acceptable agreement with the regular solution model applied as a theoretical approach. Comparison with the results from previous inve stigation on the Pb/W analyte-modifier couple is made. An attempt is a lso made to explain some effects connected with the application of mod ifiers as described in the literature within the framework of the pres ent model.