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Simultaneous extraction of organotin, orgnaolead and organomercury species from soils and litter

Titelangaben

Huang, Jen-How ; Ilgen, Gunter ; Matzner, Egbert:
Simultaneous extraction of organotin, orgnaolead and organomercury species from soils and litter.
In: Analytica Chimica Acta. Bd. 493 (2003) Heft 1 . - S. 23-34.
ISSN 1873-4324
DOI: https://doi.org/10.1016/S0003-2670(03)00861-4

Abstract

Extracting organotin compounds (OTC) from soils is difficult due to the high cation exchange and complexation capacity of soils, and little information about OTC in soils is available. In this study, a new extraction method, combining 1 M CaCl2, 0.1% tropolone, and glacial acetic acid was developed. Recoveries of mono-substituted OTC from spiked plant litter, and soil samples were improved substantially to 40% compared to classical glacial acetic acid extraction commonly used in sedimentology, yielding <10% recovery in C-rich soil samples. Simultaneously, the recovery of other OTC, trimethyllead and monomethylmercury was satisfactory. The recoveries of most species from the spiked litter, upland and wetland soils exceeded 70%. The new method extracted much more organometallics from unspiked organic soils and litter than microwave- and ultrasound-assisted extraction and accelerated solvent extraction, most likely due to exchange of organometallics from the solid phase by Ca2+. The method is simple, highly efficient and with low contamination. Together with GC–ICP–mass spectrometry, the method allows the detection of these organometallics in the pg g-1 range and it is particularly suitable for soil and plant materials with low organometallics contents. Author Keywords: Organotin; Organolead; Organomercury; Soil extraction method; Organic soil; Mineral soil; Litter

Weitere Angaben

Publikationsform: Artikel in einer Zeitschrift
Begutachteter Beitrag: Ja
Zusätzliche Informationen: BAYCEER16411
Institutionen der Universität: Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Geowissenschaften > Lehrstuhl Bodenökologie
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Geowissenschaften > Ehemalige Professoren > Lehrstuhl Bodenökologie - Univ.-Prof. Dr. Egbert Matzner
Forschungseinrichtungen > Forschungszentren > Bayreuther Zentrum für Ökologie und Umweltforschung - BayCEER
Fakultäten
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Geowissenschaften
Forschungseinrichtungen
Forschungseinrichtungen > Forschungszentren
Titel an der UBT entstanden: Ja
Themengebiete aus DDC: 500 Naturwissenschaften und Mathematik
Eingestellt am: 07 Aug 2015 07:00
Letzte Änderung: 07 Aug 2015 07:00
URI: https://eref.uni-bayreuth.de/id/eprint/17808