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Anreicherung und Bestimmung von Blei in Boden- und Sedimentaufschlüssen und -extrakten mit der Flammenatomabsorption.
Enrichment and determination of lead in digested soils and sediments resp. in soil and sediment extracts by means of flame atomic absorption.
Fresenius Z. Anal. Chem. 291, 213-216 (1978)
Preliminary investigations have shown, that considerable losses of lead occur during storage of the organic APDC/MIBK-extracts. Therefore, it was necessary to reextract lead into the aqueous phase by nitric acid. Investigations of recoveries confirmed, that extraction and reextraction of lead were quantitative. In this way the concentration of lead is increased by a factor of five. Mean standard deviations for four concentration ranges are given. A detection limit of 0.16 mg of Pb/l is obtained, which is lowered by the preceding enrichment to about 0.03 mg of Pb/l. Details of the procedure are given.
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
Best. Von Blei In Boden, Sedimenten ; Flamme, Reextraktion ; Spektralphotometrie, Atomabsorption
ISSN (print) / ISBN
0016-1152
Quellenangaben
Volume: 291,
Issue: 3,
Pages: 213-216
Publisher
Springer
Institute(s)
Institute of Radiation Protection (ISS)