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Alkaline solubilization of chicken tissues monitored by Raman spectroscopy followed by.pdf1.12 MBAdobe PDFVista previa
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dc.creatorCampos, Náira Silva-
dc.creatorOliveira, Marcone Algusto Leal de-
dc.creatorIzumi, Celly Mieko Shinohara-
dc.creatorSousa, Rafael Arromba de-
dc.date.accessioned2019-02-27T15:16:32Z-
dc.date.available2019-02-25-
dc.date.available2019-02-27T15:16:32Z-
dc.date.issued2018-02-
dc.citation.volume29pt_BR
dc.citation.issue2pt_BR
dc.citation.spage353pt_BR
dc.citation.epage362pt_BR
dc.identifier.doihttp://dx.doi.org/10.21577/0103-5053.20170148pt_BR
dc.identifier.urihttps://repositorio.ufjf.br/jspui/handle/ufjf/9251-
dc.description.abstractThis paper proposes a method for chicken tissues preparation using tetramethylammonium hydroxide (TMAH) for Pb determination by graphite furnace atomic absorption spectrometry employing multivariate approaches. Combining Raman spectroscopy with scanning electron microscopy coupled to energy-dispersive X-ray spectroscopy to monitor the solubilization process it was possible to show that TMAH acts in the solubilization of proteins, amino acids and lipids. Besides, this investigation showed that the small residual masses of samples have organic and inorganic compounds. Accuracy tests indicated that such residues have not interfered in the analytical results (recovery between 90-95%). The obtained limits of detection (0.099 µg g -1) and quantification (0.33 µg g -1) are compatible with the detectability required for regulatory purposes. Linearity (R2 = 0.9925) and characteristic mass (13 pg) were also reported. Considering the set of 15 samples comercialized in Brazil, any Pb contamination was successfully observed and this was confirmed by the analysis of digested samples.pt_BR
dc.description.resumo-pt_BR
dc.languageengpt_BR
dc.publisher-pt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.initials-pt_BR
dc.relation.ispartofJournal of the Brazilian Chemical Societypt_BR
dc.rightsAcesso Abertopt_BR
dc.subjectAtomic absorption spectrometrypt_BR
dc.subjectChickenpt_BR
dc.subjectPbpt_BR
dc.subjectTMAHpt_BR
dc.subjectRaman spectroscopypt_BR
dc.subject.cnpq-pt_BR
dc.titleAlkaline solubilization of chicken tissues monitored by Raman spectroscopy followed by Pb determination by GF AASpt_BR
dc.typeArtigo de Periódicopt_BR
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