A back-extraction procedure for the dithiocarbamate solvent extraction method. Rapid determination of metals in seawater matrices
| Autor: | W. E. Krumbein, E. Zeeck, S. Sachsenberg, T.-H. Klenke |
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| Rok vydání: | 1992 |
| Předmět: |
inorganic chemicals
chemistry.chemical_classification Cadmium Extraction (chemistry) Analytical chemistry chemistry.chemical_element Biochemistry Analytical Chemistry law.invention Matrix (chemical analysis) chemistry Liquid–liquid extraction law Seawater Graphite furnace atomic absorption Dithiocarbamate Atomic absorption spectroscopy |
| Zdroj: | Fresenius' Journal of Analytical Chemistry. 342:163-166 |
| ISSN: | 1618-2650 0937-0633 |
| DOI: | 10.1007/bf00321714 |
| Popis: | A ligand exchange liquid/liquid extraction method using dithiocarbamate complexes is elaborated for the graphite furnace atomic absorption spectrometry (GF-AAS) of seawater and marine interstitial water. Palladium is used for the exchange. This metal ensures a rapid and quantitative back-extraction. It simultaneously works as matrix modifier in the GF-AAS analysis. The proposed method is evaluated in the analysis of lead, copper, nickel, and cadmium in CASS-II marine reference seawater and samples from the North Sea. A microanalytical variant of the method is applied in marine interstitial water analysis down to sample volumes of 500 μl. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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