Determination of cadmium in lichens by solid sampling graphite furnace atomic absorption spectrometry (SS-GF-AAS)
Language English Country Netherlands Media electronic
Document type Journal Article
Grant support
RVO: 68081715
Akademie Věd České Republiky
MUNI/A/1375/2018
Masarykova Univerzita
PubMed
32146527
DOI
10.1007/s10661-020-8186-5
PII: 10.1007/s10661-020-8186-5
Knihovny.cz E-resources
- Keywords
- AAS, Cadmium, Lichen, Solid sampling,
- MeSH
- Graphite * MeSH
- Cadmium * analysis MeSH
- Environmental Pollutants * analysis MeSH
- Lichens * chemistry MeSH
- Environmental Monitoring MeSH
- Islands MeSH
- Spectrophotometry, Atomic MeSH
- Publication type
- Journal Article MeSH
- Geographicals
- Antarctic Regions MeSH
- Islands MeSH
- Names of Substances
- Graphite * MeSH
- Cadmium * MeSH
- Environmental Pollutants * MeSH
The determination of trace metal contents directly from a solid sample is a trend in modern atomic spectrometry. The aim of this study was to develop an analytical method for the routine determination of Cd in lichens using solid sampling graphite furnace atomic absorption spectrometry (SS-GF-AAS). For the determination of Cd, the temperature program of the graphite furnace was optimized using a mixed matrix modifier (Pd + Mg (NO3)2 + Triton X-100). The limit of detection and the limit of quantification were 0.9 μg/kg and 3 μg/kg, respectively. The analytical method for Cd determination in the plant matrix was verified by the analysis of certified reference materials of lichens, seaweed, and rye grass. The developed procedure was applied to the study of Cd distribution in thalli of Usnea antarctica lichen from James Ross Island, Antarctica. The SS-GF-AAS analytical method is particularly suited for use in environmental studies and plant physiology (the microanalysis of anatomical structures).
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