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Title
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Comparison of preconcentration procedures for trace metals in natural waters
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Author
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Abstract
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| The relative merits of eight procedures for preconcentrations of trace metal ions from natural water samples and synthetic solutions are evaluated. Spikes (100 μg l−1 ) of Mn, Co, Zn, Eu, Cs and Ba and the corresponding radioactive tracers were added to batches of drinking water, estuarine water, sea water, ground water, twice-distilled water and ahumic material solution. After equilibration for 25 months, the following techniques were applied: passage through columns of Dowex Al chelating resin and ofsilylated silica gel, filtration through laminate membrane filters and chelating diethylenetriamine cellulose filters, precipitation with sodium diethyldithiocarbamate and l-(2-pyridylazo)-2-naphthol, extraction with ammonium pyrrolidinedithiocarbamate, and chelation by 8-quinolinol (oxine) followed by adsorption on activated carbon. The quantitative characteristics of these techniques and the influence of the water matrix effects are discussed, as well as the applicability for x-ray fluorescence analysis. |
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Language
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English
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Source (journal)
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Analytica chimica acta. - Amsterdam, 1947, currens
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Publication
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Amsterdam
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1979
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ISSN
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0003-2670
[print]
1873-4324
[online]
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DOI
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10.1016/S0003-2670(01)93264-7
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Volume/pages
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111
(1979)
, p. 215-226
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ISI
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A1979HX09300018
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Full text (Publisher's DOI)
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Full text (publisher's version - intranet only)
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