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dc.contributor.authorUrban, V. M.
dc.contributor.authorCass, Q. B.
dc.contributor.authorOliveira, R. V.
dc.contributor.authorGiampaolo, E. T.
dc.contributor.authorMachado, Ana Lucia [UNESP]
dc.identifier.citationBiomedical Chromatography. Chichester: John Wiley & Sons Ltd, v. 20, n. 4, p. 369-376, 2006.
dc.description.abstractTwo high-performance liquid chromatographic methods for determination of residual monomer in dental acrylic resins are described. Monomers were detected by their UV absorbance at 230 nm, on a Nucleosil((R)) C-18 (5 mu m particle size, 100 angstrom pore size, 15 x 0.46 cm i.d.) column. The separation was performed using acetonitrile-water (55:45 v/v) containing 0.01% triethylamine (TEA) for methyl methacrylate and butyl methacrylate, and acetonitrile-water (60:40 v/v) containing 0.01% TEA for isobutyl methacrylate and 1,6-hexanediol dimethacrylate as mobile phases, at a flow rate of 0.8 mL/min. Good linear relationships were obtained in the concentration range 5.0-80.0 mu g/mL for methyl methacrylate, 10.0-160.0 mu g/mL for butyl methacrylate, 50.0-500.0 mu g/mL for isobutyl methacrylate and 2.5-180.0 mu g/mL for 1,6-hexanediol dimethacrylate. Adequate assay for intra- and inter-day precision and accuracy was observed during the validation process. An extraction procedure to remove residual monomer from the acrylic resins was also established. Residual monomer was obtained from broken specimens of acrylic disks using methanol as extraction solvent for 2 h in an ice-bath. The developed methods and the extraction procedure were applied to dental acrylic resins, tested with or without post-polymerization treatments, and proved to be accurate and precise for the determination of residual monomer content of the materials evaluated. Copyright (c) 2005 John Wiley & Sons, Ltd.en
dc.relation.ispartofBiomedical Chromatography
dc.sourceWeb of Science
dc.subjectresidual monomerpt
dc.subjectacrylic resinspt
dc.subjectmethod validationpt
dc.subjectpolymerization reactionpt
dc.titleDevelopment and application of methods for determination of residual monomer in dental acrylic resins using high performance liquid chromatographyen
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.description.affiliationUniv Fed Sao Carlos, Dept Chem, BR-13565905 Sao Carlos, SP, Brazil
dc.description.affiliationSão Paulo State Univ, UNESP, Dept Dent Mat & Prosthodont, Araraquara, SP, Brazil
dc.description.affiliationUnespSão Paulo State Univ, UNESP, Dept Dent Mat & Prosthodont, Araraquara, SP, Brazil
dc.rights.accessRightsAcesso restrito
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Odontologia, Araraquarapt
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