Source:http://linkedlifedata.com/resource/pubmed/id/15179535
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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
5-6
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| pubmed:dateCreated |
2004-9-14
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| pubmed:abstractText |
A rapid column-adsorption method has been developed for concentrating traces of copper, cadmium, and lead in water prior to their determinations by graphite-furnace atomic-absorption spectrometry. The adsorbent used was prepared by loading a strongly basic anion-exchanger QAE-Sephadex A-25 (50 mg) with thiacalix[4]arenetetrasulfonate (20 micromol). Two-hundredfold preconcentration of the analyte elements was achieved by passing 100 mL of sample solution (pH 8.0) through a column packed with the adsorbent (6 mm i.d. x 7 mm high) at a flow rate of 10 mL min(-1) and by the subsequent elution with 500 microL of aqueous nitric acid solution (1 mol L(-1)). The practical applicability of the proposed method was evaluated by analyzing certified reference seawater samples.
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| pubmed:language |
eng
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| pubmed:journal | |
| pubmed:status |
PubMed-not-MEDLINE
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| pubmed:month |
Jul
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| pubmed:issn |
1618-2642
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| pubmed:author | |
| pubmed:issnType |
Print
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| pubmed:volume |
379
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| pubmed:owner |
NLM
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| pubmed:authorsComplete |
Y
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| pubmed:pagination |
867-71
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| pubmed:year |
2004
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| pubmed:articleTitle |
Preconcentration of copper, cadmium, and lead with a thiacalix[4]arenetetrasulfonate-loaded Sephadex A-25 anion-exchanger for graphite-furnace atomic-absorption spectrometry.
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| pubmed:affiliation |
Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya 464-8603, Japan. h-matsu@numse.nagoya-u.ac.jp
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| pubmed:publicationType |
Journal Article
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