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Updated: Jun 28, 2026

Preparation of Food Samples Using Homogenization and Microwave-Assisted Wet Acid Digestion for Multi-Element Determination with ICP-MS
Published on: December 22, 2023
Slurry sampling for direct analysis of solid materials by electrothermal atomic absorption spectrometry (ETAAS). A
M J Cal-Prieto1, M Felipe-Sotelo, A Carlosena
1Department of Analytical Chemistry, University of A Coruña, Campus da Zapateira s/n, E-15071, A Coruna, Spain.
Abstract:
The determination of trace metals in solid samples has traditionally been performed by acid digestion and subsequent measurement by a suitable instrumental technique. This dissolution step is time-consuming and it shows important drawbacks. For these reasons, in the past years many efforts have been focused on the direct analysis of solid samples. Among the developed methodologies, slurry sampling-electrothermal atomic absorption spectrometry combines the significant advantages of the solid and liquid sampling methods, and it can be already considered as a mature technique, that is widely utilized for metal determination in both organic and inorganic matrices, even for routine analysis. Accordingly, this work gives a retrospective view of the progresses of this technique during the past decade (1990-2000).
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