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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/48804
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dc.creatorLázaro Chaves Sicupirapt_BR
dc.creatorJoão Paulo Fernandes Tiagopt_BR
dc.creatorGevany Paulino de Pinhopt_BR
dc.creatorFlaviano Oliveira Silvériopt_BR
dc.date.accessioned2023-01-10T11:19:56Z-
dc.date.available2023-01-10T11:19:56Z-
dc.date.issued2019-05-
dc.citation.volume30pt_BR
dc.citation.issue6pt_BR
dc.citation.spage1284pt_BR
dc.citation.epage1292pt_BR
dc.identifier.doihttps://doi.org/10.21577/0103-5053.20190024pt_BR
dc.identifier.issn1678-4790pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/48804-
dc.description.resumoPolychlorinated dibenzo-p-dioxins and dibenzofurans are persistent organic pollutants which can mainly be found in the environment in water. These compounds are highly toxic and therefore developing new extraction methodologies that are simpler and cost less is highly desirable. This study aimed to optimize and validate the liquid-liquid extraction with low-temperature partition methodology of 2,3,7,8-tetrachlorodibenzo-p-dioxin and 2,3,7,8-tetrachlorodibenzofuran in water samples. The optimum extraction conditions were 8.0 mL of the acetonitrile and 4.0 mL of the water, homogenized in a vortex for 1 min and then maintained at -20 ºC for 1 h. The analytes recovery percentage was close to 100% and relative standard deviation was less than 7%. The methodology was precise, accurate, linear at 2.4-5.4 µg L-1, and selective, with a quantification limit of 2.4 µg L-1. The optimized methodology was applied in ten real samples and the results showed that these analytes were not detected.pt_BR
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológicopt_BR
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Geraispt_BR
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superiorpt_BR
dc.description.sponsorshipOutra Agênciapt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentICA - INSTITUTO DE CIÊNCIAS AGRÁRIASpt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofJournal of the Brazilian Chemical Societypt_BR
dc.rightsAcesso Abertopt_BR
dc.subject.otherDioxinaspt_BR
dc.subject.otherFuranospt_BR
dc.subject.otherPoluentespt_BR
dc.subject.otherResíduos orgânicospt_BR
dc.titleSimultaneous determination of 2,3,7,8-TCDD and 2,3,7,8-TCDF in water samples by LLE-LTP and HPLC-DADpt_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://www.scielo.br/j/jbchs/a/TWWVZqGhZvsMzHnh8vzthnp/abstract/?lang=enpt_BR
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