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Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
Bestimmung von Blei in Boden- und Sedimentaufschlüssen und -extrakten mit der flammenlosen Atomabsorption in Zirkonium-beschichteten Graphitrohren.
Determination of lead in digested soils and sediments, resp. in soil and sediment extracts by means of flameless atomic absorption with zirconium coated graphite tubes.
Fresen. J. Anal. Chem. 303, 385-388 (1980)
After enrichment of lead by extraction with APDC/MIBK followed by reextraction with conc. nitric acid this element can be determined by means of flameless atomic absorption without interferences. Zirconium coated tubes are used as electrothermal atomizers. In spite of the high concentration of nitric acid it is possible to inject the reextracts into those tubes directly. Interferences of accompanying elements can be eliminated by a preceding treatment of the tubes with Fe3+ solution. These zirconium coated tubes proved to be very resistant (150-200 analyses). Detailed working conditions for the determination by flameless atomic absorption with electrothermal atomization are given. By the extraction/reextraction procedure lead is enriched by a factor of five. Detection limits have been found to be 0.012 mg Pb/l reextract and about 0.0025 mg/l digested soil solution (Confidence level 95%).
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Schlagwörter
Best. Von Blei In Boden, Sedimenten ; Spektrometrie, Atomabsorption, Flammenlos ; Zr-beschichtete Graphitrohre
ISSN (print) / ISBN
0937-0633
e-ISSN
1432-1130
Zeitschrift
Fresenius' Journal of Analytical Chemistry
Quellenangaben
Band: 303,
Heft: 5,
Seiten: 385-388
Verlag
Springer
Nichtpatentliteratur
Publikationen
Begutachtungsstatus
Peer reviewed
Institut(e)
Institute of Radiation Protection (ISS)