Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/99043
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Astefanei, Alina | - |
dc.contributor.author | Núñez Burcio, Oscar | - |
dc.contributor.author | Galcerán Huguet, M. Teresa | - |
dc.date.accessioned | 2016-05-30T12:34:12Z | - |
dc.date.available | 2016-05-30T12:34:12Z | - |
dc.date.issued | 2014-09-02 | - |
dc.identifier.issn | 0021-9673 | - |
dc.identifier.uri | http://hdl.handle.net/2445/99043 | - |
dc.description.abstract | In this work, a method is proposed for the simultaneous analysis of several pristine fullerenes (C60, C70, C76, C78, and C84) and three C60-fullerene derivatives (N-methyl fulleropyrrolidine, [6,6]-Phenyl C61 butyric acid methyl ester and [6,6]-Phenyl C61 butyric acid buthyl ester) in environmental samples. The method involves the use of ultrahigh performance liquid chromatography coupled to atmospheric pressure photoionization mass spectrometry (UHPLC-APPI-MS) and allowed the chromatographic separation in less than 4.5 minutes. The product ions from tandem mass spectrometry studies of fullerene derivatives, were characterized and the most abundant one (m/z 720), corresponding to [C60]-¿, was selected for quantitation. Selected reaction monitoring (SRM at 0.7 m/z FWHM) by acquiring two transitions using both isotopic cluster ions [M]-¿ and [M+1]-¿ as precursor ions was proposed for quantitation and confirmation purposes. For pristine fullerenes, highly-selective selected ion monitoring (H-SIM) acquisition mode by monitoring the isotopic cluster ions [M]-¿ and [M+1]-¿ was used. Pressurized solvent extraction conditions were optimized in order to improve recoveries of the studied fullerene compounds from sediment samples. Values up to 87-92% for C60-fullerene derivatives and lower but still acceptable, 70-80%, for pristine fullerenes were obtained. Method limits of quantitation (MLOQs) ranging from 1.5 pg L-1to 5.5 ng L-1 in water samples and from 0.1 ng Kg-1 to 523 ng Kg-1 in sediments were obtained with good precision (relative standard deviations always lower than 13%). The applicability of the developed method was evaluated by analyzing several environmental samples such as sediments and pond water and the detected levels for C60-fullerene derivatives were of 0.1-2.7 ng Kg-1and 1.5-8.5 pg L-1, respectively. C60 and C70 were the only pristine fullerenes detected in the analyzed samples (0.1-7.2 ng Kg-1 in sediments and 9-330 pg L-1 in water pond samples). | - |
dc.format.extent | 11 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Elsevier B.V. | - |
dc.relation.isformatof | Versió postprint del document publicat a: http://dx.doi.org/10.1016/j.chroma.2014.08.089 | - |
dc.relation.ispartof | Journal of Chromatography A, 2014, vol. 1365, p. 61-71 | - |
dc.relation.uri | http://dx.doi.org/10.1016/j.chroma.2014.08.089 | - |
dc.rights | (c) Elsevier B.V., 2014 | - |
dc.source | Articles publicats en revistes (Enginyeria Química i Química Analítica) | - |
dc.subject.classification | Ful·lerens | - |
dc.subject.classification | Espectrometria de masses | - |
dc.subject.classification | Cromatografia de líquids d'alta resolució | - |
dc.subject.classification | Mostreig mediambiental | - |
dc.subject.other | Fullerenes | - |
dc.subject.other | Mass spectrometry | - |
dc.subject.other | High performance liquid chromatography | - |
dc.subject.other | Environmental sampling | - |
dc.title | Analysis of C60-fullerene fullerene derivatives and pristine fullerenes in environmental samples by ultrahigh performance liquid chromatography-atmospheric pressure photoionization-mass spectrometry | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/acceptedVersion | - |
dc.identifier.idgrec | 642832 | - |
dc.date.updated | 2016-05-30T12:34:17Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
dc.identifier.pmid | 25204268 | - |
Appears in Collections: | Articles publicats en revistes (Enginyeria Química i Química Analítica) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
642832.pdf | 1.28 MB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.