Absolute Analysis in Electrothermal Atomic Absorption Spectrometry: PB with Matrix Modifiers

Author： Fagioli F.   Locatelli C.   Vecchietti R.   Torsi G.  

Publisher： Society for Applied Spectroscopy

ISSN： 0003-7028

Source： Applied Spectroscopy, Vol.45, Iss.6, 1991-07, pp. : 983-985

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Abstract

A new method for absolute analysis in Electrothermal Atomization Atomic Absorption Spectroscopy (ETA-AAS), proposed for aqueous solutions, is extended to matrix modifiers based on palladium and magnesium. The experimental results show that only the Pd-based matrix modifier can be accepted for Pb analysis. No differences have been found if tantalum is used instead of graphite as the atomization surface in the same experimental conditions.

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