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Using thermal and spectroscopic data to investigate the thermal behavior of epinephrine

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dc.contributor.authorBannach, Gilbert [UNESP]
dc.contributor.authorCervini, Priscila
dc.contributor.authorGomes Cavalheiro, Eder Tadeu
dc.contributor.authorIonashiro, Massao [UNESP]
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T14:19:31Z
dc.date.available2014-05-20T14:19:31Z
dc.date.issued2010-02-20
dc.description.abstractEpinephrine is a neurotransmitter of the catecholamine class that acts in the mammalian central nervous system. The TG-DTA curves of epinephrine showed that the anhydrous compound starts decomposition at 165 degrees C, under the conditions used in this work. The reflectance FTIR spectra and X-ray powder diffraction patterns of epinephrine before and after heating up to 210 degrees C, as well as the TG-FTIR spectra of sample heated between 30 and 600 degrees C, were obtained and reveled that after heating, structural changes occurred in the sample. At temperatures higher than 205 degrees C the thermal decomposition took place with elimination of rnethylamine in agreement with the first mass loss observed in the TG curve in both air and N(2) atmospheres (TG = 17.0%, calcd. = 17.0%). The melting was observed at 205 degrees C (DTA) or 203 degrees C (DSC) but this process occurred overlapped with decomposition characteristic of an incongruent melting process. (C) 2009 Elsevier B.V. All rights reserved.en
dc.description.affiliationUSP, IQSC, BR-13560970 São Carlos, SP, Brazil
dc.description.affiliationUNESP, Inst Quim, BR-14801970 Araraquara, SP, Brazil
dc.description.affiliationUnespUNESP, Inst Quim, BR-14801970 Araraquara, SP, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIdFAPESP: 08/04296-3
dc.description.sponsorshipIdFAPESP: 06/06951-3
dc.description.sponsorshipIdFAPESP: 06/06633-1
dc.format.extent123-127
dc.identifierhttp://dx.doi.org/10.1016/j.tca.2009.11.012
dc.identifier.citationThermochimica Acta. Amsterdam: Elsevier B.V., v. 499, n. 1-2, p. 123-127, 2010.
dc.identifier.doi10.1016/j.tca.2009.11.012
dc.identifier.issn0040-6031
dc.identifier.lattes8460531302083773
dc.identifier.urihttp://hdl.handle.net/11449/25892
dc.identifier.wosWOS:000275257200020
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofThermochimica Acta
dc.relation.ispartofjcr2.189
dc.relation.ispartofsjr0,605
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectEpinephrineen
dc.subjectThermal decompositionen
dc.subjectThermal stabilityen
dc.subjectTG-FTIRen
dc.subjectTG-DTAen
dc.titleUsing thermal and spectroscopic data to investigate the thermal behavior of epinephrineen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
dspace.entity.typePublication
unesp.author.lattes8460531302083773
unesp.author.orcid0000-0002-8790-5069[1]
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Química, Araraquarapt
unesp.campusUniversidade Estadual Paulista (UNESP), Faculdade de Ciências, Baurupt
unesp.departmentQuímica - FCpt
unesp.departmentQuímica Analítica - IQARpt

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Bauru - FC - Faculdade de Ciências
Araraquara - IQAR - Instituto de Química