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

dc.creatorda Rocha, EC
dc.creatorValente, ALP
dc.creatorAugusto, F
dc.date2000
dc.dateJAN-FEB
dc.date2014-12-02T16:28:36Z
dc.date2015-11-26T16:34:10Z
dc.date2014-12-02T16:28:36Z
dc.date2015-11-26T16:34:10Z
dc.date.accessioned2018-03-28T23:16:20Z
dc.date.available2018-03-28T23:16:20Z
dc.identifierQuimica Nova. Soc Brasileira Quimica, v. 23, n. 1, n. 94, n. 97, 2000.
dc.identifier0100-4042
dc.identifierWOS:000085390300016
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/66563
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/66563
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/66563
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1271117
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 he 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 (mu gL(-1)) level.
dc.description23
dc.description1
dc.description94
dc.description97
dc.languagept
dc.publisherSoc Brasileira Quimica
dc.publisherSao Paulo
dc.publisherBrasil
dc.relationQuimica Nova
dc.relationQuim. Nova
dc.rightsaberto
dc.sourceWeb of Science
dc.subjectmembrane permeation
dc.subjectvolatile organic compounds
dc.subjectgas chromatography
dc.subjectHollow-fiber Membrane
dc.subjectGas-chromatography
dc.subjectMass-spectrometry
dc.subjectWater
dc.subjectPervaporation
dc.subjectInterface
dc.subjectProbe
dc.subjectMicrotrap
dc.subjectSamples
dc.subjectSystem
dc.titleExtraction and pre-concentration of volatile organic compounds by membrane permeation for chromatography analysis.
dc.typeArtículos de revistas


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