Minimizing spectral interferences with an array ICP emission spectrometer using different strategies for signal evaluation

Five signal evaluation strategies to minimize the impact of spectral interf erences were compared in cases where partial overlap exists: parabolic fit calculation of peak maximum, on-peak measurement, matrix matching, interele ment correction, and a chemometric technique (Multi-component Spectral Fitt ing). The latter technique gave best results with respect to accuracy, repr oducibility, and detection limits.