2012•Modern Agricultural Science and TechnologyRequires access

Determination of Thallium in Sediments by Microwave Digestion-Graphite Furnace Atomic Absorption Spectrometry

Chang Liu

Abstract

Both the microwave digestion method and the electric heating plate digestion were used by GF-AAS in the determination of thallium in the National Standard Reference Materials,and the precisions and accuracies were compared.The results showed that the relative standard deviations(RSD) of microwave digestion method and electric heating plate digestion were 4.6% and 8.3% respectively.The results were in good agreement with the recommended values.Microwave digestion was used in sediment samples,and satisfactory results were gotten.

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Key concepts: Microwave digestion, Digestion (alchemy), Thallium, Graphite furnace atomic absorption, Microwave, Chemistry, Atomic absorption spectroscopy, Analytical Chemistry (journal)