Efficiency Of L'vov Platform And Ascorbic Acid Modifier For Reduction Of Interferences In The Analysis Of Plant Samples For Pb,T1, Sb,Cd, Ni AND Cr BY ET-AAS

Abstract

The interferences encountered in trace metal analysis of plant media by ET-AAS are described. The atomization of Cd, Cr and Ni are weakly perturbed by the plant matrix elements and no corrections have been investigated. For Pb, T1 and Sb a drastic slope reduction of the working curve is observed, which drastically reduces sensitivity. These perturbations are minimized by the L'vov platform technology, the efficiency of which has been tested with four commercially available ET-AAS systems. Matrix modification by ascorbic acid may be also efficient.