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Determination of volatile organic compounds in water by headspace solid-phase microextraction gas chromatography coupled to tandem mass spectrometry with triple quadrupole analyzer
dc.contributor.author | Cervera Vidal, María Inés | |
dc.contributor.author | Beltran Arandes, Joaquin | |
dc.contributor.author | Lopez, Francisco | |
dc.contributor.author | Hernandez, Felix | |
dc.date.accessioned | 2012-09-03T08:54:51Z | |
dc.date.available | 2012-09-03T08:54:51Z | |
dc.date.issued | 2011-10-17 | |
dc.identifier.citation | Analytica Chimica Acta (17 Oct. 2011), vol. 704, no. 1/2, 87–97 | |
dc.identifier.issn | 0003-2670 | |
dc.identifier.uri | http://hdl.handle.net/10234/45624 | |
dc.description.abstract | In the present work, a rapid method with little sample handling has been developed for determination of 23 selected volatile organic compounds in environmental and wastewater samples. The method is based on headspace solid-phase microextraction (SPME) followed by gas chromatography coupled to tandem mass spectrometry (GC–MS/MS) determination using triple quadrupole analyzer (QqQ) in electron ionization mode. The best conditions for extraction were optimised with a factorial design taking into account the interaction between different parameters and not only individual effects of variables. In the optimized procedure, 4 mL of water sample were extracted using a 10 mL vial and adding 0.4 g NaCl (final NaCl content of 10%). An SPME extraction with carboxen/polydimethylsiloxane 75 μm fiber for 30 min at 50 °C (with 5 min of previous equilibration time) with magnetic stirring was applied. Chromatographic determination was carried out by GC–MS/MS working in Selected Reaction Monitoring (SRM) mode. For most analytes, two MS/MS transitions were acquired, although for a few compounds it was difficult to obtain characteristic abundant fragments. In those cases, a pseudo selected reaction monitoring (pseudo-SRM) with three ions was used instead. The intensity ratio between quantitation (Q) and confirmation (q) signals was used as a confirmatory parameter. The method was validated by means of recovery experiments (n = 6) spiking mineral water samples at three concentration levels (0.1, 5 and 50 μg L−1). Recoveries between 70% and 120% were generally obtained with relative standard deviations (RSDs) lower than 20%. The developed method was applied to surface water and wastewater from a wastewater treatment plant and from a municipal solid-waste treatment plant. Several compounds, like chloroform, benzene, trichloroethylene, toluene, tetrachloroethylene, dibromochloromethane, xylenes and bromoform were detected and confirmed in all the samples analyzed | ca_CA |
dc.description.sponsorShip | This work has been developed under financial support of Bancaixa (P1·1B2009-25). The authors acknowledge the financial support of Generalitat Valenciana, as research group of excellence PROMETEO/2009/054 and the financial support from Ministerio de Ciencia e Innovación (project CTQ2009-12347) | ca_CA |
dc.format.extent | 11 p. | ca_CA |
dc.format.mimetype | application/pdf | ca_CA |
dc.language | eng | ca_CA |
dc.language.iso | cat | ca_CA |
dc.publisher | Elsevier | ca_CA |
dc.rights | © 2011 Elsevier B.V. All rights reserved | ca_CA |
dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | * |
dc.subject | Volatile organic compounds | ca_CA |
dc.subject | Gas chromatography tandem mass spectrometry | ca_CA |
dc.subject | Triple quadrupole | ca_CA |
dc.subject | Environmental water | ca_CA |
dc.subject | Wastewater | ca_CA |
dc.subject | Headspace solid-phase microextractio | ca_CA |
dc.title | Determination of volatile organic compounds in water by headspace solid-phase microextraction gas chromatography coupled to tandem mass spectrometry with triple quadrupole analyzer | ca_CA |
dc.type | info:eu-repo/semantics/article | ca_CA |
dc.identifier.doi | http://dx.doi.org/10.1016/j.aca.2011.08.012 | |
dc.rights.accessRights | info:eu-repo/semantics/restrictedAccess | ca_CA |
dc.relation.publisherVersion | http://www.sciencedirect.com/science/article/pii/S000326701101110X# | ca_CA |
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