| Magnetically confined hydrophobic nanoparticles for the microextraction of endocrine-disrupting phenols from environmental waters. | |
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MedLine Citation:
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PMID: 23322352 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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In this article, a solid-phase extraction approach, which takes advantage of the good extraction capabilities of hydrophobic magnetic nanoparticles (MNPs), is presented. The new approach involves the deposition of a thin layer of MNPs in a dedicated stirring unit based on the dual function of a mini-magnet. The system allows the extraction of the analytes in a simple and efficient way. The approach, which reduces the negative effect of the aggregation tendency of hydrophobic MNPs, is characterized for the resolution of a model analytical problem: the determination of some endocrine-disrupting phenols in water by liquid chromatography-photometric detection. All the variables involved in the extraction process have been clearly identified and optimized. The new extraction mode allows the determination of these compounds with limits of detection in the range from 0.15 μg/L (for 4-tert-octylphenol) to 2.7 μg/L (for 4-tert-butylphenol) with a relative standard deviation lower than 5.3 % (for 4-tert-butylphenol). |
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Authors:
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M C Alcudia-León; R Lucena; S Cárdenas; M Valcárcel |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2013-1-16 |
Journal Detail:
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Title: Analytical and bioanalytical chemistry Volume: - ISSN: 1618-2650 ISO Abbreviation: Anal Bioanal Chem Publication Date: 2013 Jan |
Date Detail:
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Created Date: 2013-1-16 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101134327 Medline TA: Anal Bioanal Chem Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Department of Analytical Chemistry, Institute of Fine Chemistry and Nanochemistry, University of Córdoba, Marie Curie Building, Campus de Rabanales, 14071, Córdoba, Spain. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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