New passive sampling device for effective monitoring of pesticides in water

Página do item simplificado
dc.creatorEduard Ferney Valenzuela Toledo
dc.creatorHelvécio Costa Menezes
dc.creatorZenilda de Lourdes Cardeal
dc.date.accessioned2023-01-10T17:00:30Z
dc.date.accessioned2025-09-08T23:54:51Z
dc.date.available2023-01-10T17:00:30Z
dc.date.issued2019
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
dc.description.sponsorshipOutra Agência
dc.identifier.doihttps://doi.org/10.1016/j.aca.2018.12.017
dc.identifier.issn0003-2670
dc.identifier.urihttps://hdl.handle.net/1843/48825
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofAnalytica Chimica Acta
dc.rightsAcesso Restrito
dc.subjectQuímica analítica
dc.subjectPesticidas
dc.subjectProdutos químicos agrícolas
dc.subjectPoluentes orgânicos aquáticos
dc.subjectCromatografia de gás
dc.subjectEspectrometria de massa
dc.subjectExtração (Química)
dc.subject.otherSampling device
dc.subject.otherPassive sampling
dc.subject.otherHollow fiber liquid phase microextraction
dc.subject.otherPesticides
dc.subject.otherSurface water
dc.titleNew passive sampling device for effective monitoring of pesticides in water
dc.typeArtigo de periódico
local.citation.epage37
local.citation.spage26
local.citation.volume1054
local.description.resumoThe extensive use of pesticides promotes environmental contamination, mainly in surface and ground waters. However, they remain at very low concentration and present wide degradation level requiring the use of efficient devices for pesticides passive sampling. In this study, a new in situ passive sampling device was developed for monitoring and estimating time-weighted average (TWA) of pesticides in waters. The device was made with simple, recyclable and cheap materials. The sampling system involves the liquid phase microextraction technique with hollow fiber in two-phases mode. Pesticides determination was done by gas chromatography coupled to mass spectrometry. The method was optimized and validated for the determination of 29 pesticides in water, showing good linearity in the range between 0.012 and 40.00 μg L−¹ with determination coefficients of R² > 0,9649. Limit of detection (LOD) ranged from 0.009 to 0.557 μg L−¹ and limit of quantification (LOQ) from 0.012 to 0.802 μg L−¹. The recoveries of spiked pesticides in water samples were in the range from 96 to 130%. The method was applied to forty environmental water samples collected at São Francisco river basin, Brazil. The highest detection frequency was found for the pesticides 4,4-DDE, 4,4-DDD and propazine. They were detected in more than 20 percent of the samples.
local.identifier.orcidhttps://orcid.org/0000-0002-5759-612X
local.identifier.orcidhttps://orcid.org/0000-0003-1383-6299
local.publisher.countryBrasil
local.publisher.departmentICX - DEPARTAMENTO DE QUÍMICA
local.publisher.initialsUFMG
local.url.externahttps://www.sciencedirect.com/science/article/pii/S0003267018314521

Arquivos

Licença do pacote

Agora exibindo 1 - 1 de 1
Imagem de Miniatura
Nome:
License.txt
Tamanho:
1.99 KB
Formato:
Plain Text
Descrição:
Baixar

Coleções

Artigo de Periódico

Logo UFMG