New home-made assembly for hollow-fibre membrane extraction of persistent organic pollutants from real world samples.
Identifieur interne : 001682 ( Main/Exploration ); précédent : 001681; suivant : 001683New home-made assembly for hollow-fibre membrane extraction of persistent organic pollutants from real world samples.
Auteurs : J. Manso [Espagne] ; T. García-Barrera ; J L G Mez-ArizaSource :
- Journal of chromatography. A [ 1873-3778 ] ; 2011.
English descriptors
- KwdEn :
- Animals, Citrus sinensis (chemistry), Environmental Pollutants (analysis), Environmental Pollutants (isolation & purification), Gas Chromatography-Mass Spectrometry, Liquid Phase Microextraction (instrumentation), Liquid Phase Microextraction (methods), Lycopersicon esculentum (chemistry), Membranes, Artificial, Multivariate Analysis, Pesticide Residues (analysis), Pesticide Residues (isolation & purification), Plasma (chemistry), Polychlorinated Biphenyls (analysis), Polychlorinated Biphenyls (isolation & purification), Regression Analysis, Reproducibility of Results, Sensitivity and Specificity, Swine.
- MESH :
- chemical , analysis : Environmental Pollutants, Pesticide Residues, Polychlorinated Biphenyls.
- chemistry : Citrus sinensis, Lycopersicon esculentum, Plasma.
- instrumentation : Liquid Phase Microextraction.
- chemical , isolation & purification : Environmental Pollutants, Pesticide Residues, Polychlorinated Biphenyls.
- methods : Liquid Phase Microextraction.
- Animals, Gas Chromatography-Mass Spectrometry, Membranes, Artificial, Multivariate Analysis, Regression Analysis, Reproducibility of Results, Sensitivity and Specificity, Swine.
Abstract
Nowadays, hollow fibre membrane extraction techniques are widely used but they are usually applied to water or very simple matrices such as water. In this paper, we propose a new assembly that allows the extraction of forty persistent organic pollutants in real world samples, namely orange juice, porcine plasma and tomatoes. The limits of detection obtained are very low even in the analysis of real samples (9-182 ng L(-1)). The relative standard deviations vary from 1 to 18% and the averaged recoveries in the spike experiments are very high (65-120%) in the different types of samples studied. The new assembly allows a very good precision overcoming in one of the most important shortcomings of membrane extraction techniques. A central composite design has been performed to get optimal extraction conditions for the analytes and also the combined response of all the analytes has been obtained to attain the simultaneous optimum.
DOI: 10.1016/j.chroma.2011.09.023
PubMed: 21962495
Affiliations:
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Le document en format XML
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<front><div type="abstract" xml:lang="en">Nowadays, hollow fibre membrane extraction techniques are widely used but they are usually applied to water or very simple matrices such as water. In this paper, we propose a new assembly that allows the extraction of forty persistent organic pollutants in real world samples, namely orange juice, porcine plasma and tomatoes. The limits of detection obtained are very low even in the analysis of real samples (9-182 ng L(-1)). The relative standard deviations vary from 1 to 18% and the averaged recoveries in the spike experiments are very high (65-120%) in the different types of samples studied. The new assembly allows a very good precision overcoming in one of the most important shortcomings of membrane extraction techniques. A central composite design has been performed to get optimal extraction conditions for the analytes and also the combined response of all the analytes has been obtained to attain the simultaneous optimum.</div>
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