Extração e pré-concentração de compostos orgânicos voláteis por permeação em membrana para análise cromatográfica

Extraction and pre-concentration of volatile organic compounds by membrane permeation for chromatography analysis

dc.creatorRocha, Eduardo Carasek da
dc.creatorValente, Antonio Luiz Pires
dc.creatorAugusto, Fabio
dc.date2000-02-01
dc.date2014-07-17T14:50:27Z
dc.date2015-11-26T11:54:14Z
dc.date2014-07-17T14:50:27Z
dc.date2015-11-26T11:54:14Z
dc.date.accessioned2018-03-28T20:57:22Z
dc.date.available2018-03-28T20:57:22Z
dc.identifierQuímica Nova. Sociedade Brasileira de Química, v. 23, n. 1, p. 94-97, 2000.
dc.identifier0100-4042
dc.identifierS0100-40422000000100016
dc.identifier10.1590/S0100-40422000000100016
dc.identifierhttp://dx.doi.org/10.1590/S0100-40422000000100016
dc.identifierhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422000000100016
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/23431
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/23431
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1237978
dc.descriptionThis work discusses sample preparation processes for gas chromatography (GC) based on the technique of extraction through membrane permeation (MPE). The MPE technique may be easily coupled to GC via a relatively simple device, which is a module that holds the membrane and is directly connected to the GC column. The possibility of operational errors due to sample handling is substantially reduced in an MPE-GC system because the sample preparation and the chemical analysis are accomplished as a one-step process. The MPE technique is of relatively wide application as it can be used for aqueous samples, solid samples and gaseous samples. Depending on the type of sample the extraction is performed with the membrane in direct contact with the sample or in contact with its headspace. The MPE-GC technique is very useful in trace analysis, due to the time-dependent enrichment of the analyte. A typical application of MPE-GC is the analysis of VOCs present in water that may be accomplished with detection limits at the low ppb (mugL-1) level.
dc.description94
dc.description97
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.languagept
dc.publisherSociedade Brasileira de Química
dc.relationQuímica Nova
dc.rightsaberto
dc.sourceSciELO
dc.subjectmembrane permeation
dc.subjectvolatile organic compounds
dc.subjectgas chromatography
dc.titleExtração e pré-concentração de compostos orgânicos voláteis por permeação em membrana para análise cromatográfica
dc.titleExtraction and pre-concentration of volatile organic compounds by membrane permeation for chromatography analysis
dc.typeArtículos de revistas


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