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Development of a robust technique for sampling volatile metal(loid)s in wetlands

Title data

Planer-Friedrich, Britta ; Matschullat, Jörg ; Merkel, Broder J. ; Roewer, Gerhard ; Volke, Peter:
Development of a robust technique for sampling volatile metal(loid)s in wetlands.
In: Analytical and Bioanalytical Chemistry. Vol. 374 (2002) Issue 7-8 . - pp. 1191-1198.
ISSN 1618-2650
DOI: https://doi.org/10.1007/s00216-002-1636-9

Abstract in another language

The formation of volatile organic and inorganic metals and metalloids in aquatic environments is a known,but not very intensively investigated, process. Several techniques have been developed over the past 10 years todetermine these trace components. These techniques are of limited use in wetland environments, where sampleshave to be taken from the soil-water interface, and require an immediate sample analysis due to thermodynamic instabilities of the volatile metal(loid)s. This paper presents an innovative sampling technique for total concentrations of volatile metal(loid)s in wetlands, based on an in situ gas-water separation via a porous PTFE membrane and stabilising the volatile metal(loid)s in a liquid sorbent (NaOCl solution). Samples may thus be collected even at remote sites, where longer storage times have to be accounted for. The sampling system was tested by means of a laboratory facility simulating the generation of arsine and dimethyl arsine under abiotic conditions as well as under field conditions. Results for sampling efficiency, reproducibility, and long-term storage are presented. Application of the sampling system in the field is shown.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER80703
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Professorship Environmental Geochemistry Group
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences
Result of work at the UBT: Yes
DDC Subjects: 500 Science
Date Deposited: 22 Oct 2015 07:29
Last Modified: 22 Oct 2015 07:29
URI: https://eref.uni-bayreuth.de/id/eprint/20649