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000061335 0247_ $$2pmid$$apmid:18385865
000061335 0247_ $$2DOI$$a10.1039/b717942a
000061335 0247_ $$2WOS$$aWOS:000254648300007
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000061335 041__ $$aeng
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000061335 084__ $$2WoS$$aChemistry, Analytical
000061335 084__ $$2WoS$$aEnvironmental Sciences
000061335 1001_ $$0P:(DE-HGF)0$$aBabay, P. A.$$b0
000061335 245__ $$aSimplified determination of lipophilic metabolites of nonylphenol ethoxylates: method development and application in aqueous samples from Buenos Aires, Argentina
000061335 260__ $$aLondon$$bRoyal Society of Chemistry$$c2008
000061335 300__ $$a443 - 452
000061335 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article
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000061335 440_0 $$03298$$aJournal of Environmental Monitoring$$v10$$x1464-0325
000061335 500__ $$aRecord converted from VDB: 12.11.2012
000061335 520__ $$aIn the present work we have developed an analytical methodology for the determination of nonylphenol (NP) and nonylphenol mono- and di-ethoxylates (NP1EO and NP2EO) in water samples. The applicability of this methodology was proved by means of the analysis of environmentally relevant aqueous samples from Buenos Aires. This constitutes a starting point for a rigorous assessment of the incidence of NPnEO surfactants in Argentina, as only very few, qualitative or semi-quantitative data on the occurrence of these compounds in local systems were available up to this time. Enrichment of the analytes was carried out by solid-phase extraction on a C-18 sorbent, followed by elution with ethyl acetate. Normal-phase high performance liquid chromatography on an amino-silica column and fluorescence detection at excitation-emission wavelengths of 230-300 nm were employed for separation and quantification of the analytes. Confirmation of peak assignment in selected real samples was performed by off-line coupling HPLC with GC-MS analysis. A non-polar GC capillary column was used, and a characteristic peak pattern was obtained for the alkyl chain isomers of each ethoxylated homologue and NP. GC-MS analyses yielded in all cases purity levels higher than 80% for the HPLC collected fractions. The elevated concentrations found for the estrogenic metabolites of NPnEO are in accordance with an unrestricted use of this class of non-ionic surfactants in the country.
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000061335 588__ $$aDataset connected to Web of Science, Pubmed
000061335 650_2 $$2MeSH$$aArgentina
000061335 650_2 $$2MeSH$$aChromatography, High Pressure Liquid
000061335 650_2 $$2MeSH$$aEnvironmental Monitoring: methods
000061335 650_2 $$2MeSH$$aEthylene Glycols: analysis
000061335 650_2 $$2MeSH$$aGas Chromatography-Mass Spectrometry
000061335 650_2 $$2MeSH$$aSolid Phase Extraction
000061335 650_2 $$2MeSH$$aSurface-Active Agents: analysis
000061335 650_2 $$2MeSH$$aWater Pollutants, Chemical: analysis
000061335 650_7 $$00$$2NLM Chemicals$$aEthylene Glycols
000061335 650_7 $$00$$2NLM Chemicals$$aSurface-Active Agents
000061335 650_7 $$00$$2NLM Chemicals$$aWater Pollutants, Chemical
000061335 650_7 $$027986-36-3$$2NLM Chemicals$$aterics
000061335 650_7 $$2WoSType$$aJ
000061335 7001_ $$0P:(DE-HGF)0$$aAle, E. E. R.$$b1
000061335 7001_ $$0P:(DE-HGF)0$$aItria, R. F.$$b2
000061335 7001_ $$0P:(DE-HGF)0$$aBecquart, E. T.$$b3
000061335 7001_ $$0P:(DE-Juel1)129410$$aThiele, B.$$b4$$uFZJ
000061335 7001_ $$0P:(DE-HGF)0$$aBatistoni, D. A.$$b5
000061335 773__ $$0PERI:(DE-600)2027542-0$$a10.1039/b717942a$$gVol. 10, p. 443 - 452$$p443 - 452$$q10<443 - 452$$tJournal of environmental monitoring$$v10$$x1464-0325$$y2008
000061335 8567_ $$uhttp://dx.doi.org/10.1039/b717942a
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000061335 915__ $$0StatID:(DE-HGF)0010$$aJCR/ISI refereed
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