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

Title data

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

Abstract in another language

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

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER16411
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Chair Soil Ecology
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Former Professors > Chair Soil Ecology - Univ.-Prof. Dr. Egbert Matzner
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: Yes
DDC Subjects: 500 Science
Date Deposited: 07 Aug 2015 07:00
Last Modified: 07 Aug 2015 07:00
URI: https://eref.uni-bayreuth.de/id/eprint/17808