Computational elimination of interferent effects in flame atomic-absorption spectrometry.

Empirical formulae, which describe quantitatively the interferent effects in flame atomic-absorption analysis, have been proposed. The formulae enable calculation of the total multi-interferent effect of a complex system, on the basis of characteristic coefficients established for simple analyte-interferent pairs. The approach may be used for the computational elimination of interferent effects and for correction of analytical results. Experimental verification has confirmed that the corrected results are consistent with the actual concentrations.