Preparation And Characterization Of Polydimethylsiloxane/poly(vinylalcohol) Coated Solid Phase Microextraction Fibers Using Sol-gel Technology.

dc.creatorLopes, Alexandre Leite
dc.creatorAugusto, Fabio
dc.date2004-Nov
dc.date2015-11-27T12:58:37Z
dc.date2015-11-27T12:58:37Z
dc.date.accessioned2018-03-29T01:00:00Z
dc.date.available2018-03-29T01:00:00Z
dc.identifierJournal Of Chromatography. A. v. 1056, n. 1-2, p. 13-9, 2004-Nov.
dc.identifier0021-9673
dc.identifier
dc.identifierhttp://www.ncbi.nlm.nih.gov/pubmed/15595527
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/196052
dc.identifier15595527
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1296285
dc.descriptionThe applicability of a composite composed of polydimethylsiloxane (PDMS) and poly(vinyl alcohol) (PDMS/PVA) as coating sorbent for SPME fibers is demonstrated here. Fused silica (FS) fibers were coated with PDMS/PVA composite through a sol-gel process, using methyltrimethoxysilane as reticulating agent. The chemical and physical properties of the sol-gel PDMS/PVA composite were determined by infrared spectroscopy and thermogravimetric analysis. Electron scanning microscopy of the prepared fibers, showed that the coating obtained was highly microporous, having a thickness of approximately 5 microm. The fibers were tested for the headspace extraction of several organic compounds (o-xylene, naphthalene, ethyl caprate, p-chlorotoluene and PCB) prior to gas chromatographic analysis. The extractive capacity of the PDMS/PVA coating was found to be superior to that of pure conventional PDMS fibers.
dc.description1056
dc.description13-9
dc.languageeng
dc.relationJournal Of Chromatography. A
dc.relationJ Chromatogr A
dc.rightsfechado
dc.rights
dc.sourcePubMed
dc.subjectChromatography, Gas
dc.subjectDimethylpolysiloxanes
dc.subjectGels
dc.subjectMicroscopy, Electron, Scanning
dc.subjectPolyvinyl Alcohol
dc.subjectSilicones
dc.subjectSpectrophotometry, Infrared
dc.titlePreparation And Characterization Of Polydimethylsiloxane/poly(vinylalcohol) Coated Solid Phase Microextraction Fibers Using Sol-gel Technology.
dc.typeArtículos de revistas


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