The use of solid-phase extraction and direct injection of a copolymer sorbent as slurry into the graphite furnace prior to determination of cadmium by ETAAS |
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Authors: | Asli Baysal Suleyman Akman |
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Institution: | Faculty of Science and Letters, Department of Chemistry , Istanbul Technical University , 34469, Maslak-Istanbul, Turkey |
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Abstract: | Abstract Several aquatic heterogeneous humic-solute fractions with known molecular-size ranges were fractionated further by coupled size-exclusion chromatography (SEC) and polyacrylamide gel electrophoresis (PAGE). The results of SEC-PAGE, obtained for several humic-solute fractions, corresponded reasonably well to the known molecular-size distributions of the dissolved organic matter (DOM). Despite the limited resolving power PAGE appears to offer an alternative coarse method, beside SEC, for fractionation of the heterogeneous humic matter (HM). |
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Keywords: | Separation Preconcentration Cadmium Electrothermal atomic absorption spectrometry Slurry sampling |
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