Determination of cadmium in lichens by solid sampling graphite furnace atomic absorption spectrometry (SS-GF-AAS)
| Autor: | Antonín Uher, Ondřej Zvěřina, Pavel Coufalík, Josef Komárek |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Lichens 010504 meteorology & atmospheric sciences Analytical chemistry Antarctic Regions chemistry.chemical_element Atomic spectroscopy 010501 environmental sciences Management Monitoring Policy and Law Mass spectrometry 01 natural sciences Microanalysis Matrix (chemical analysis) 0105 earth and related environmental sciences General Environmental Science Islands Detection limit Cadmium Spectrophotometry Atomic General Medicine Pollution Certified reference materials chemistry Environmental Pollutants Graphite Graphite furnace atomic absorption Environmental Monitoring |
| Zdroj: | Environmental Monitoring and Assessment. 192 |
| ISSN: | 1573-2959 0167-6369 |
| DOI: | 10.1007/s10661-020-8186-5 |
| Popis: | 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). |
| Databáze: | OpenAIRE |
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