Direct determination of N-nitrosoglyphosate in technical glyphosate using ion chromatography with UV detection

Detalhes bibliográficos
Autor(a) principal: Santana, Mário Henrique Palis
Data de Publicação: 2017
Outros Autores: Maldaner, Adriano Otávio, Fraga, William Goelzer, Almeida, Fernanda Vasconcelos de
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UnB
Texto Completo: http://repositorio.unb.br/handle/10482/30692
http://dx.doi.org/10.21577/0103-5053.20160280
Resumo: The official method for analyzing N-nitrosoglyphosate (NNG), a relevant impurity, in glyphosate matrix demands complicated instrumentation and operating conditions not available in many laboratories. In this work, we developed a direct, simple, selective and sensitive ion chromatography (IC) method with UV detection for the determination of NNG in samples of technical glyphosate. To separate NNG from the matrix we used an IC anionic column mounted in a high-performance liquid chromatography (HPLC) apparatus equipped with a photo-diode array detector. The system used a high ionic strength eluent. The method was validated, taking into account the following figures of merit: selectivity, linearity, repeatability, intermediate precision, recovery, limit of detection (LOD), and limit of quantification (LOQ). The proposed method is sensitive enough to quantify NNG below the maximum concentration determined by both the Food and Agricultural Organization of the United Nations (FAO) and the Brazilian regulation.
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spelling Direct determination of N-nitrosoglyphosate in technical glyphosate using ion chromatography with UV detectionPesticidasCromatografia de troca iônicaGlifosatoThe official method for analyzing N-nitrosoglyphosate (NNG), a relevant impurity, in glyphosate matrix demands complicated instrumentation and operating conditions not available in many laboratories. In this work, we developed a direct, simple, selective and sensitive ion chromatography (IC) method with UV detection for the determination of NNG in samples of technical glyphosate. To separate NNG from the matrix we used an IC anionic column mounted in a high-performance liquid chromatography (HPLC) apparatus equipped with a photo-diode array detector. The system used a high ionic strength eluent. The method was validated, taking into account the following figures of merit: selectivity, linearity, repeatability, intermediate precision, recovery, limit of detection (LOD), and limit of quantification (LOQ). The proposed method is sensitive enough to quantify NNG below the maximum concentration determined by both the Food and Agricultural Organization of the United Nations (FAO) and the Brazilian regulation.Instituto de Química (IQ)Sociedade Brasileira de Química2018-01-04T19:14:42Z2018-01-04T19:14:42Z2017-07info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfSANTANA, Mário H. P. et al. Direct determination of N-nitrosoglyphosate in technical glyphosate using ion chromatography with UV detection. Journal of the Brazilian Chemical Society, São Paulo, v. 28, n. 7, p. 1331-1334, jul. 2017. Disponível em: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532017000701331&lng=en&nrm=iso>. Acesso em: 7 fev. 2018. doi: http://dx.doi.org/10.21577/0103-5053.20160280.http://repositorio.unb.br/handle/10482/30692http://dx.doi.org/10.21577/0103-5053.20160280Journal of the Brazilian Chemical Society - This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0). Fonte: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532017000701331&lng=en&nrm=iso. Acesso em: 7 fev. 2018.info:eu-repo/semantics/openAccessSantana, Mário Henrique PalisMaldaner, Adriano OtávioFraga, William GoelzerAlmeida, Fernanda Vasconcelos deengreponame:Repositório Institucional da UnBinstname:Universidade de Brasília (UnB)instacron:UNB2023-09-18T14:48:47Zoai:repositorio.unb.br:10482/30692Repositório InstitucionalPUBhttps://repositorio.unb.br/oai/requestrepositorio@unb.bropendoar:2023-09-18T14:48:47Repositório Institucional da UnB - Universidade de Brasília (UnB)false
dc.title.none.fl_str_mv Direct determination of N-nitrosoglyphosate in technical glyphosate using ion chromatography with UV detection
title Direct determination of N-nitrosoglyphosate in technical glyphosate using ion chromatography with UV detection
spellingShingle Direct determination of N-nitrosoglyphosate in technical glyphosate using ion chromatography with UV detection
Santana, Mário Henrique Palis
Pesticidas
Cromatografia de troca iônica
Glifosato
title_short Direct determination of N-nitrosoglyphosate in technical glyphosate using ion chromatography with UV detection
title_full Direct determination of N-nitrosoglyphosate in technical glyphosate using ion chromatography with UV detection
title_fullStr Direct determination of N-nitrosoglyphosate in technical glyphosate using ion chromatography with UV detection
title_full_unstemmed Direct determination of N-nitrosoglyphosate in technical glyphosate using ion chromatography with UV detection
title_sort Direct determination of N-nitrosoglyphosate in technical glyphosate using ion chromatography with UV detection
author Santana, Mário Henrique Palis
author_facet Santana, Mário Henrique Palis
Maldaner, Adriano Otávio
Fraga, William Goelzer
Almeida, Fernanda Vasconcelos de
author_role author
author2 Maldaner, Adriano Otávio
Fraga, William Goelzer
Almeida, Fernanda Vasconcelos de
author2_role author
author
author
dc.contributor.author.fl_str_mv Santana, Mário Henrique Palis
Maldaner, Adriano Otávio
Fraga, William Goelzer
Almeida, Fernanda Vasconcelos de
dc.subject.por.fl_str_mv Pesticidas
Cromatografia de troca iônica
Glifosato
topic Pesticidas
Cromatografia de troca iônica
Glifosato
description The official method for analyzing N-nitrosoglyphosate (NNG), a relevant impurity, in glyphosate matrix demands complicated instrumentation and operating conditions not available in many laboratories. In this work, we developed a direct, simple, selective and sensitive ion chromatography (IC) method with UV detection for the determination of NNG in samples of technical glyphosate. To separate NNG from the matrix we used an IC anionic column mounted in a high-performance liquid chromatography (HPLC) apparatus equipped with a photo-diode array detector. The system used a high ionic strength eluent. The method was validated, taking into account the following figures of merit: selectivity, linearity, repeatability, intermediate precision, recovery, limit of detection (LOD), and limit of quantification (LOQ). The proposed method is sensitive enough to quantify NNG below the maximum concentration determined by both the Food and Agricultural Organization of the United Nations (FAO) and the Brazilian regulation.
publishDate 2017
dc.date.none.fl_str_mv 2017-07
2018-01-04T19:14:42Z
2018-01-04T19:14:42Z
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 SANTANA, Mário H. P. et al. Direct determination of N-nitrosoglyphosate in technical glyphosate using ion chromatography with UV detection. Journal of the Brazilian Chemical Society, São Paulo, v. 28, n. 7, p. 1331-1334, jul. 2017. Disponível em: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532017000701331&lng=en&nrm=iso>. Acesso em: 7 fev. 2018. doi: http://dx.doi.org/10.21577/0103-5053.20160280.
http://repositorio.unb.br/handle/10482/30692
http://dx.doi.org/10.21577/0103-5053.20160280
identifier_str_mv SANTANA, Mário H. P. et al. Direct determination of N-nitrosoglyphosate in technical glyphosate using ion chromatography with UV detection. Journal of the Brazilian Chemical Society, São Paulo, v. 28, n. 7, p. 1331-1334, jul. 2017. Disponível em: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532017000701331&lng=en&nrm=iso>. Acesso em: 7 fev. 2018. doi: http://dx.doi.org/10.21577/0103-5053.20160280.
url http://repositorio.unb.br/handle/10482/30692
http://dx.doi.org/10.21577/0103-5053.20160280
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Sociedade Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv reponame:Repositório Institucional da UnB
instname:Universidade de Brasília (UnB)
instacron:UNB
instname_str Universidade de Brasília (UnB)
instacron_str UNB
institution UNB
reponame_str Repositório Institucional da UnB
collection Repositório Institucional da UnB
repository.name.fl_str_mv Repositório Institucional da UnB - Universidade de Brasília (UnB)
repository.mail.fl_str_mv repositorio@unb.br
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