Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/355553
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dc.contributor.CRUESPUNIVERSIDADE ESTADUAL DE CAMPINASpt_BR
dc.contributor.authorunicampTorres, Daiane Placido-
dc.contributor.authorunicampCadore, Solange-
dc.typeArtigopt_BR
dc.titleMethod validation for control determination of mercury in fresh fish and shrimp samples by solid sampling thermal decomposition/amalgamation atomic absorption spectrometrypt_BR
dc.contributor.authorTorres, Daiane Placido-
dc.contributor.authorMartins-Teixeira, Maristela Braga-
dc.contributor.authorCadore, Solange-
dc.contributor.authorQueiroz, Helena Müller-
dc.subjectPeixept_BR
dc.subjectCamarãopt_BR
dc.subject.otherlanguageFisherspt_BR
dc.subject.otherlanguageShrimpspt_BR
dc.description.abstractA method for the determination of total mercury in fresh fish and shrimp samples by solid sampling thermal decomposition/amalgamation atomic absorption spectrometry (TDA AAS) has been validated following international foodstuff protocols in order to fulfill the Brazilian National Residue Control Plan. The experimental parameters have been previously studied and optimized according to specific legislation on validation and inorganic contaminants in foodstuff. Linearity, sensitivity, specificity, detection and quantification limits, precision (repeatability and within-laboratory reproducibility), robustness as well as accuracy of the method have been evaluated. Linearity of response was satisfactory for the two range concentrations available on the TDA AAS equipment, between approximately 25.0 and 200.0 μg kg−1 (square regression) and 250.0 and 2000.0 μg kg−1 (linear regression) of mercury. The residues for both ranges were homoscedastic and independent, with normal distribution. Correlation coefficients obtained for these ranges were higher than 0.995. Limits of quantification (LOQ) and of detection of the method (LDM), based on signal standard deviation (SD) for a low-in-mercury sample, were 3.0 and 1.0 μg kg−1, respectively. Repeatability of the method was better than 4%. Within-laboratory reproducibility achieved a relative SD better than 6%. Robustness of the current method was evaluated and pointed sample mass as a significant factor. Accuracy (assessed as the analyte recovery) was calculated on basis of the repeatability, and ranged from 89% to 99%. The obtained results showed the suitability of the present method for direct mercury measurement in fresh fish and shrimp samples and the importance of monitoring the analysis conditions for food control purposes. Additionally, the competence of this method was recognized by accreditation under the standard ISO/IEC 17025pt_BR
dc.relation.ispartofJournal of environmental science and health. Part B: pesticides, food contaminants, and agricultural wastespt_BR
dc.relation.ispartofabbreviationJ. environ. sci. health Bpt_BR
dc.publisher.cityNew York, NYpt_BR
dc.publisher.countryEstados Unidospt_BR
dc.publisherTaylor & Francispt_BR
dc.date.issued2015-
dc.language.isoengpt_BR
dc.description.volume50pt_BR
dc.description.issuenumber7pt_BR
dc.description.firstpage514pt_BR
dc.description.lastpage522pt_BR
dc.rightsFechadopt_BR
dc.sourceWOSpt_BR
dc.identifier.issn0360-1234pt_BR
dc.identifier.eissn1532-4109pt_BR
dc.identifier.doi10.1080/03601234.2015.1018764pt_BR
dc.identifier.urlhttps://www.tandfonline.com/doi/full/10.1080/03601234.2015.1018764pt_BR
dc.description.sponsorshipCONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQpt_BR
dc.description.sponsordocumentnumbernão tempt_BR
dc.date.available2021-02-10T20:43:43Z-
dc.date.accessioned2021-02-10T20:43:43Z-
dc.description.provenanceSubmitted by Mariana Aparecida Azevedo (mary1@unicamp.br) on 2021-02-10T20:43:43Z No. of bitstreams: 0en
dc.description.provenanceMade available in DSpace on 2021-02-10T20:43:43Z (GMT). No. of bitstreams: 0 Previous issue date: 2015en
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/355553-
dc.contributor.departmentsem informaçãopt_BR
dc.contributor.departmentDepartamento de Química Analíticapt_BR
dc.contributor.unidadeInstituto de Químicapt_BR
dc.subject.keywordControl determination of mercurypt_BR
dc.subject.keywordSolid samplingpt_BR
dc.subject.keywordDirect mercury analyzerpt_BR
dc.subject.keywordMethod validationpt_BR
dc.identifier.source000354876300008pt_BR
dc.creator.orcid0000-0002-7832-7068pt_BR
dc.creator.orcid0000-0002-5029-4006pt_BR
dc.type.formArtigopt_BR
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