Headspace solid phase microextraction-gas chromatography for the determination of trihalomethanes in fish
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , , |
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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LOCUS Repositório Institucional da UFV |
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2145 |
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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 |
_version_ |
1822610544987734016 |