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dc.contributor.authorArisseto, Adriana Pavesi; et. al.-
dc.contributor.otherPT_Br
dc.date.accessioned-
dc.date.accessioned2022-08-29T18:18:50Z-
dc.date.availablePT_Br
dc.date.available2022-08-29T18:18:50Z-
dc.date.copyright-
dc.date.issued2013-
dc.identifierPT_Br
dc.identifier.citationRevista do Instituto Adolfo Lutz, São Paulo, v.71, n.1, p.40-43, 2013.pt_BR
dc.identifier.urihttp://repositorio.ital.sp.gov.br/jspui/handle/123456789/407-
dc.description.abstractA method based on headspace-solid phase microextraction and gas chromatography with mass spectrometry has been developed and validated for the determination of benzene in soft drinks. The extraction step was optimized using a rotatable central composite design including the following experimental variables: extraction temperature, extraction time, sample weight, and salt concentration. The optimized procedure, which was carried out at 30 °C during 30 min by using a 75 μm carboxen-polydimethylsiloxane fiber, showed good linearity within the concentration range 0–25 μgkg−1 (r2>0.999), mean recoveries from 97.5 to 103.1 %, and coefficients of variation from 1.5 to 13.4 % for repeatability and from 1.5 to 15.7 % for withinlaboratory reproducibility. Limits of detection and quantification were calculated at 0.02 and 0.08 μgkg−1, respectively. The method was applied to determine the concentrations of benzene in 77 samples of beverages from the Brazilian market. Levels from <0.08 to 10.84 μgkg−1 were obtained, which are comparable to those verified in other countries. Most of the samples (72.2 %) contained benzene up to 1 μgkg−1.pt_BR
dc.formatPT_Br
dc.languagePT_Br
dc.language.isoenpt_BR
dc.rightsPT_Br
dc.sourcePT_Br
dc.subjectBenzenept_BR
dc.subjectSoft drinkspt_BR
dc.subjectSolid phase microextractionpt_BR
dc.subjectGC/MSpt_BR
dc.titleDevelopment of a Headspace-Solid Phase Microextraction-Gas Chromatography/Mass Spectrometry (HS-SPME-GC/MS) Method for the Determination of Benzene in Soft Drinkspt_BR
dc.typeArticlept_BR
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dc.subject.cnpqPT_Br
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