Abstract: Amodified method for real-time intelligent background correction in inductively coupled plasma atomic emission spectrometry using a laboratory-constructed photodiode ar ray spectrometer is proposed.Apolynomial model and a statistical model are used to fit the background, but better results can be obtained for the structured background and line wings by the statistical model.Prior knowledge of sample composition and visual inspection of the spectral window are not required.The method is evaluated by determining Al and La in Ca matrix.

Key words: Photodiode array, Inductively coupled plasma, Atomic emission spectrometry, Intelligent background correction