Comparison of sample preparation procedures for the determination of trace heavy metals in house dust, tobacco and tea samples by atomic absorption spectrometry
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Date
2004
Journal Title
Journal ISSN
Volume Title
Publisher
WILEY-V C H VERLAG GMBH
Access Rights
info:eu-repo/semantics/closedAccess
Abstract
The effect of wet ashing, dry ashing and microwave procedure for the determination of trace metal levels was investigated in house dust, tobacco and tea samples by atomic absorption spectrometry. The study of sample preparation procedures showed that the microwave method was the best. The recovery of trace metals was very good and precision and accuracy were compatible with standard reference material. The relative standard deviations for all measured metal concentrations were lower than 10%. The digestions of HNO3/H2SO4/HClO4 (4:1:1) mixture for house dust, HNO3/HSO4/H2O2 (2:2:2) mixture for tea and HNO3/H2O2 (4:2) mixture for tobacco were very efficient.
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Keywords
Journal or Series
ANNALI DI CHIMICA
WoS Q Value
Q4
Scopus Q Value
N/A
Volume
94
Issue
11
