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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.
Bd. 374
(2002)
Heft 7-8
.
- S. 1191-1198.
ISSN 1618-2650
DOI: https://doi.org/10.1007/s00216-002-1636-9
Abstract
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.
Weitere Angaben
| Publikationsform: | Artikel in einer Zeitschrift |
|---|---|
| Begutachteter Beitrag: | Ja |
| Zusätzliche Informationen: | BAYCEER80703 |
| Institutionen der Universität: | Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Geowissenschaften > Professur Umweltgeochemie Fakultäten Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Geowissenschaften |
| Titel an der UBT entstanden: | Ja |
| Themengebiete aus DDC: | 500 Naturwissenschaften und Mathematik |
| Eingestellt am: | 22 Okt 2015 07:29 |
| Letzte Änderung: | 22 Okt 2015 07:29 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/20649 |