Simultaneous determination of 2,3,7,8-TCDD and 2,3,7,8-TCDF in water samples by LLE-LTP and HPLC-DAD

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dc.creatorLázaro Chaves Sicupira
dc.creatorJoão Paulo Fernandes Tiago
dc.creatorGevany Paulino de Pinho
dc.creatorFlaviano Oliveira Silvério
dc.date.accessioned2023-01-10T11:19:56Z
dc.date.accessioned2025-09-09T01:01:33Z
dc.date.available2023-01-10T11:19:56Z
dc.date.issued2019-05
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Gerais
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
dc.description.sponsorshipOutra Agência
dc.identifier.doihttps://doi.org/10.21577/0103-5053.20190024
dc.identifier.issn1678-4790
dc.identifier.urihttps://hdl.handle.net/1843/48804
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofJournal of the Brazilian Chemical Society
dc.rightsAcesso Aberto
dc.subjectDioxinas
dc.subjectFuranos
dc.subjectPoluentes
dc.subjectResíduos orgânicos
dc.titleSimultaneous determination of 2,3,7,8-TCDD and 2,3,7,8-TCDF in water samples by LLE-LTP and HPLC-DAD
dc.typeArtigo de periódico
local.citation.epage1292
local.citation.issue6
local.citation.spage1284
local.citation.volume30
local.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.
local.publisher.countryBrasil
local.publisher.departmentICA - INSTITUTO DE CIÊNCIAS AGRÁRIAS
local.publisher.initialsUFMG
local.url.externahttps://www.scielo.br/j/jbchs/a/TWWVZqGhZvsMzHnh8vzthnp/abstract/?lang=en

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