Evaluation of the Microwave-Induced Plasma for Multielement Emission Spectrometric Analyses

Abstract

A microwave-induced argon plasma has been evaluated as a spectrochemical excitation source for multielement analyses of solutions. Results for 12 elements indicate that detection capabilities are typically better than 0.01 µg/ml. Analyses of food composite samples indicate that matrix effects occur but these are cancelled by the use of the internal standard method.