P. Hautaniemi et R. Matilainen, Example of a technique for evaluation of interferences caused by complicated sample matrix elements in ICP-AES determination, FRESEN J AN, 370(1), 2001, pp. 28-32
An example of a useful and rapid procedure for the evaluation of interferen
ces caused by complicated sample matrices in inductively coupled plasma ato
mic emission spectrometry (ICP-AES) is described. Using simple acid-base st
andards, all the elements investigated were determined separately in compli
cated matrices with satisfactory results. Multiple linear regression was us
ed to calculate the linear correction coefficients for each matrix element
analyzed. Good analytical results improved still further when this correcti
on method was used.