Headspace solid phase microextraction-gas chromatography for the determination of trihalomethanes in fish

Detalhes bibliográficos
Autor(a) principal: Delvaux Júnior, Nelson A.
Data de Publicação: 2017
Outros Autores: Queiroz, Maria E.L.R. de, Neves, Antônio A., Oliveira, André F., Silva, Marcos R. F. da, Faroni, Lêda R. A., Heleno, Fernanda F.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: LOCUS Repositório Institucional da UFV
Texto Completo: https://doi.org/10.1016/j.microc.2017.04.019
http://www.locus.ufv.br/handle/123456789/21731
Resumo: The aim of this work is to develop a method for determining trihalomethanes (THMs) in fish samples. The proposed method uses solid phase microextraction and gas chromatography with an electron capture detector. Factors such as temperature, extraction time and type of fiber were assessed to maximize the performance of the extraction technique. The performance of the method was evaluated using selectivity, linearity, precision, accuracy and limits of detection (LOD) and quantification (LOQ). The new method allows analysis of THMs with appropriate selectivity and linearity, with coefficient of correlation > 0.98. The LOD and LOQ of the analytes of interest are from 0.11 to 0.35 μg kg− 1 and 0.35 to 1.18 μg kg− 1, respectively. In addition, the relative standard deviation (RSD) was between 1.6 and 8%, and the relative recovery was between 76 and 113%. The optimized and validated method was applied to fish samples purchased from the Viçosa (MG) local market. At least three of the THMs of interest were detected in most of the analyzed fish samples with maximum values for the concentration of chloroform, bromodichloromethane and bromoform at 8.33, 0.42 and 2.41 μg kg− 1, respectively.
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spelling Headspace solid phase microextraction-gas chromatography for the determination of trihalomethanes in fishTrihalomethanesDisinfection by productsSample preparationGC/ECDThe aim of this work is to develop a method for determining trihalomethanes (THMs) in fish samples. The proposed method uses solid phase microextraction and gas chromatography with an electron capture detector. Factors such as temperature, extraction time and type of fiber were assessed to maximize the performance of the extraction technique. The performance of the method was evaluated using selectivity, linearity, precision, accuracy and limits of detection (LOD) and quantification (LOQ). The new method allows analysis of THMs with appropriate selectivity and linearity, with coefficient of correlation > 0.98. The LOD and LOQ of the analytes of interest are from 0.11 to 0.35 μg kg− 1 and 0.35 to 1.18 μg kg− 1, respectively. In addition, the relative standard deviation (RSD) was between 1.6 and 8%, and the relative recovery was between 76 and 113%. The optimized and validated method was applied to fish samples purchased from the Viçosa (MG) local market. At least three of the THMs of interest were detected in most of the analyzed fish samples with maximum values for the concentration of chloroform, bromodichloromethane and bromoform at 8.33, 0.42 and 2.41 μg kg− 1, respectively.Microchemical Journal2018-09-10T18:22:08Z2018-09-10T18:22:08Z2017-07info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlepdfapplication/pdf0026265Xhttps://doi.org/10.1016/j.microc.2017.04.019http://www.locus.ufv.br/handle/123456789/21731engv. 133, p. 539- 544, july 2017Elsevier B.V.info:eu-repo/semantics/openAccessDelvaux Júnior, Nelson A.Queiroz, Maria E.L.R. deNeves, Antônio A.Oliveira, André F.Silva, Marcos R. F. daFaroni, Lêda R. A.Heleno, Fernanda F.reponame:LOCUS Repositório Institucional da UFVinstname:Universidade Federal de Viçosa (UFV)instacron:UFV2024-07-12T06:19:24Zoai:locus.ufv.br:123456789/21731Repositório InstitucionalPUBhttps://www.locus.ufv.br/oai/requestfabiojreis@ufv.bropendoar:21452024-07-12T06:19:24LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)false
dc.title.none.fl_str_mv Headspace solid phase microextraction-gas chromatography for the determination of trihalomethanes in fish
title Headspace solid phase microextraction-gas chromatography for the determination of trihalomethanes in fish
spellingShingle Headspace solid phase microextraction-gas chromatography for the determination of trihalomethanes in fish
Delvaux Júnior, Nelson A.
Trihalomethanes
Disinfection by products
Sample preparation
GC/ECD
title_short Headspace solid phase microextraction-gas chromatography for the determination of trihalomethanes in fish
title_full Headspace solid phase microextraction-gas chromatography for the determination of trihalomethanes in fish
title_fullStr Headspace solid phase microextraction-gas chromatography for the determination of trihalomethanes in fish
title_full_unstemmed Headspace solid phase microextraction-gas chromatography for the determination of trihalomethanes in fish
title_sort Headspace solid phase microextraction-gas chromatography for the determination of trihalomethanes in fish
author Delvaux Júnior, Nelson A.
author_facet Delvaux Júnior, Nelson A.
Queiroz, Maria E.L.R. de
Neves, Antônio A.
Oliveira, André F.
Silva, Marcos R. F. da
Faroni, Lêda R. A.
Heleno, Fernanda F.
author_role author
author2 Queiroz, Maria E.L.R. de
Neves, Antônio A.
Oliveira, André F.
Silva, Marcos R. F. da
Faroni, Lêda R. A.
Heleno, Fernanda F.
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Delvaux Júnior, Nelson A.
Queiroz, Maria E.L.R. de
Neves, Antônio A.
Oliveira, André F.
Silva, Marcos R. F. da
Faroni, Lêda R. A.
Heleno, Fernanda F.
dc.subject.por.fl_str_mv Trihalomethanes
Disinfection by products
Sample preparation
GC/ECD
topic Trihalomethanes
Disinfection by products
Sample preparation
GC/ECD
description The aim of this work is to develop a method for determining trihalomethanes (THMs) in fish samples. The proposed method uses solid phase microextraction and gas chromatography with an electron capture detector. Factors such as temperature, extraction time and type of fiber were assessed to maximize the performance of the extraction technique. The performance of the method was evaluated using selectivity, linearity, precision, accuracy and limits of detection (LOD) and quantification (LOQ). The new method allows analysis of THMs with appropriate selectivity and linearity, with coefficient of correlation > 0.98. The LOD and LOQ of the analytes of interest are from 0.11 to 0.35 μg kg− 1 and 0.35 to 1.18 μg kg− 1, respectively. In addition, the relative standard deviation (RSD) was between 1.6 and 8%, and the relative recovery was between 76 and 113%. The optimized and validated method was applied to fish samples purchased from the Viçosa (MG) local market. At least three of the THMs of interest were detected in most of the analyzed fish samples with maximum values for the concentration of chloroform, bromodichloromethane and bromoform at 8.33, 0.42 and 2.41 μg kg− 1, respectively.
publishDate 2017
dc.date.none.fl_str_mv 2017-07
2018-09-10T18:22:08Z
2018-09-10T18:22:08Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv 0026265X
https://doi.org/10.1016/j.microc.2017.04.019
http://www.locus.ufv.br/handle/123456789/21731
identifier_str_mv 0026265X
url https://doi.org/10.1016/j.microc.2017.04.019
http://www.locus.ufv.br/handle/123456789/21731
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv v. 133, p. 539- 544, july 2017
dc.rights.driver.fl_str_mv Elsevier B.V.
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Elsevier B.V.
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv pdf
application/pdf
dc.publisher.none.fl_str_mv Microchemical Journal
publisher.none.fl_str_mv Microchemical Journal
dc.source.none.fl_str_mv reponame:LOCUS Repositório Institucional da UFV
instname:Universidade Federal de Viçosa (UFV)
instacron:UFV
instname_str Universidade Federal de Viçosa (UFV)
instacron_str UFV
institution UFV
reponame_str LOCUS Repositório Institucional da UFV
collection LOCUS Repositório Institucional da UFV
repository.name.fl_str_mv LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)
repository.mail.fl_str_mv fabiojreis@ufv.br
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