Poly(methyltetradecylsiloxane) Immobilized Onto Silica For Extraction Of Multiclass Pesticides From Surface Waters.

dc.creatorFaria, Anizio M
dc.creatorMaldaner, Liane
dc.creatorSantana, César C
dc.creatorJardim, Isabel C S F
dc.creatorCollins, Carol H
dc.date2007-Jan
dc.date2015-11-27T13:09:55Z
dc.date2015-11-27T13:09:55Z
dc.date.accessioned2018-03-29T01:04:32Z
dc.date.available2018-03-29T01:04:32Z
dc.identifierAnalytica Chimica Acta. v. 582, n. 1, p. 34-40, 2007-Jan.
dc.identifier1873-4324
dc.identifier10.1016/j.aca.2006.08.046
dc.identifierhttp://www.ncbi.nlm.nih.gov/pubmed/17386471
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/197218
dc.identifier17386471
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1297451
dc.descriptionA new material based on poly(methyltetradecylsiloxane) (PMTDS) thermally immobilized onto a silica support has been tested as a sorbent for the solid-phase extraction (SPE) from water of several pesticides used in soybean cultivation. The SPE methodology was developed and validated for six of these pesticides (imazethapyr, imazaquin, metsulfuron-methyl, bentazone, chlorimuron-ethyl and tebuconazole) according to the International Conference on Harmonization directives and the results were compared with those obtained with a commercial C18 SPE cartridge. The PMTDS-based sorbent gives results similar to the commercial sorbent with recoveries and precisions in agreement with directives for residue analysis. The quantification limits, after concentration, of all the pesticides evaluated were 1.0 microg L(-1), below the levels imposed by the principal regulatory agencies. The PMTDS-based sorbent preparation is fast, easy and reproducible and the cartridges are less expensive than similar commercial SPE materials.
dc.description582
dc.description34-40
dc.languageeng
dc.relationAnalytica Chimica Acta
dc.relationAnal. Chim. Acta
dc.rightsfechado
dc.rights
dc.sourcePubMed
dc.subjectChromatography, High Pressure Liquid
dc.subjectPesticide Residues
dc.subjectReproducibility Of Results
dc.subjectSensitivity And Specificity
dc.subjectSilicon Dioxide
dc.subjectSiloxanes
dc.subjectSpectrum Analysis
dc.subjectWater Pollutants, Chemical
dc.titlePoly(methyltetradecylsiloxane) Immobilized Onto Silica For Extraction Of Multiclass Pesticides From Surface Waters.
dc.typeArtículos de revistas


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