Comparison between two chromatographic methods to determine chlorothalonil in a commercial fungicide

Introduction: Chlorothalonil can be determined by several analytical techniques, including gas chromatography (GC) and high performance liquid chromatography (HPLC). These two techniques are used often because they have a higher level of stability and sensitivity. Objective: To compare the efficacy...

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Autores: Pérez López, Esteban, Rodríguez Rodríguez, Rosa Angélica
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2019
País:Costa Rica
Institución:Universidad Estatal a Distancia
Repositorio:Portal de Revistas UNED
Idioma:español
OAI Identifier:oai:revistas.investiga.uned.ac.cr:article/2627
Acceso en línea:https://revistas.uned.ac.cr/index.php/cuadernos/article/view/2627
Access Level:acceso abierto
Palabra clave:agrochemicals
chlorothalonil
pesticides
analytical method
validation
agroquímicos
clorotalonil
plaguicidas
método analítico
validación
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spelling Comparison between two chromatographic methods to determine chlorothalonil in a commercial fungicideComparación de dos métodos cromatográficos para determinar clorotalonil en un fungicida comercialPérez López, EstebanRodríguez Rodríguez, Rosa Angélicaagrochemicalschlorothalonilpesticidesanalytical methodvalidationagroquímicosclorotalonilplaguicidasmétodo analíticovalidaciónIntroduction: Chlorothalonil can be determined by several analytical techniques, including gas chromatography (GC) and high performance liquid chromatography (HPLC). These two techniques are used often because they have a higher level of stability and sensitivity. Objective: To compare the efficacy of analytical methodologies by GC and by HPLC for the determination of chlorothalonil in a commercial fungicide. Methods: both the HPLC method and the GC method used by the laboratory were applied to equivalent samples and the results were compared with paired statistical tests. Results: both methods produced statistically equivalent and reliable results. These parameters were satisfactory: selectivity, range of work and linearity, limit of detection and quantification, repeatability, intermediate precision, robustness, veracity and bias; we consider them linear, precise and exact methods that meet the norms of the Costa Rican Accreditation Entity (ECA). Conclusions: both methods for determining chlorothalonil can be used reliably under the defined conditions.Introducción: El clorotalonil se puede determinar por varias técnicas de análisis, entre ellas la cromatografía de gases (GC) y cromatografía líquida de alta resolución (HPLC). Estas dos técnicas son las de mayor uso en los laboratorios Objetivo: Comparar la eficacia de las metodologías analíticas por GC y por HPLC para la determinación de clorotalonil en un fungicida comercial. Métodos: aplicamos ambos métodos a muestras equivalentes y comparamos los resultados con pruebas estadísticas. Resultados: ambos métodos arrojaron resultados estadísticamente equivalentes y confiables. Estos parámetros fueron satisfactorios: selectividad, ámbito de trabajo y linealidad, límite de detección y cuantificación, repetibilidad, precisión intermedia, robustez, veracidad y sesgo; los consideramos lineales, precisos y exactos que cumplen con las normas del Ente Costarricense de Acreditación (ECA). Conclusiones: ambos métodos para determinación de clorotalonil se pueden utilizar de manera confiable bajo las condiciones definidas.Universidad Estatal a Distancia, Costa Rica2019-12-01info:eu-repo/semantics/publishedVersionartículo originalhttp://purl.org/coar/resource_type/c_2df8fbb1info:eu-repo/semantics/articleapplication/pdftext/htmlapplication/epub+ziphttps://revistas.uned.ac.cr/index.php/cuadernos/article/view/262710.22458/urj.v11i3.2627UNED Research Journal; Vol. 11 No. 3 (2019); 334-344UNED Research Journal; Vol. 11 Núm. 3 (2019); 334-3441659-441X1659-4266reponame:Portal de Revistas UNEDinstname:Universidad Estatal a Distanciainstacron:UNEDspahttps://revistas.uned.ac.cr/index.php/cuadernos/article/view/2627/3300https://revistas.uned.ac.cr/index.php/cuadernos/article/view/2627/3460https://revistas.uned.ac.cr/index.php/cuadernos/article/view/2627/3461Derechos de autor 2019 UNED Research Journalacceso abiertohttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccess2022-09-01T20:20:19Zoai:revistas.investiga.uned.ac.cr:article/2627Universidadhttp://www.uned.ac.crhttps://revistas.uned.ac.cr/index.php/index/oaissegura@uned.ac.crCosta RicaNo aplicaNo aplicaNo aplicaopendoar:02025-06-01T10:59:52.903Portal de Revistas UNED - Universidad Estatal a Distanciafalse
dc.title.none.fl_str_mv Comparison between two chromatographic methods to determine chlorothalonil in a commercial fungicide
Comparación de dos métodos cromatográficos para determinar clorotalonil en un fungicida comercial
title Comparison between two chromatographic methods to determine chlorothalonil in a commercial fungicide
spellingShingle Comparison between two chromatographic methods to determine chlorothalonil in a commercial fungicide
Pérez López, Esteban
agrochemicals
chlorothalonil
pesticides
analytical method
validation
agroquímicos
clorotalonil
plaguicidas
método analítico
validación
title_short Comparison between two chromatographic methods to determine chlorothalonil in a commercial fungicide
title_full Comparison between two chromatographic methods to determine chlorothalonil in a commercial fungicide
title_fullStr Comparison between two chromatographic methods to determine chlorothalonil in a commercial fungicide
title_full_unstemmed Comparison between two chromatographic methods to determine chlorothalonil in a commercial fungicide
title_sort Comparison between two chromatographic methods to determine chlorothalonil in a commercial fungicide
dc.creator.none.fl_str_mv Pérez López, Esteban
Rodríguez Rodríguez, Rosa Angélica
author Pérez López, Esteban
author_facet Pérez López, Esteban
Rodríguez Rodríguez, Rosa Angélica
author_role author
author2 Rodríguez Rodríguez, Rosa Angélica
author2_role author
dc.subject.none.fl_str_mv agrochemicals
chlorothalonil
pesticides
analytical method
validation
agroquímicos
clorotalonil
plaguicidas
método analítico
validación
topic agrochemicals
chlorothalonil
pesticides
analytical method
validation
agroquímicos
clorotalonil
plaguicidas
método analítico
validación
description Introduction: Chlorothalonil can be determined by several analytical techniques, including gas chromatography (GC) and high performance liquid chromatography (HPLC). These two techniques are used often because they have a higher level of stability and sensitivity. Objective: To compare the efficacy of analytical methodologies by GC and by HPLC for the determination of chlorothalonil in a commercial fungicide. Methods: both the HPLC method and the GC method used by the laboratory were applied to equivalent samples and the results were compared with paired statistical tests. Results: both methods produced statistically equivalent and reliable results. These parameters were satisfactory: selectivity, range of work and linearity, limit of detection and quantification, repeatability, intermediate precision, robustness, veracity and bias; we consider them linear, precise and exact methods that meet the norms of the Costa Rican Accreditation Entity (ECA). Conclusions: both methods for determining chlorothalonil can be used reliably under the defined conditions.
publishDate 2019
dc.date.none.fl_str_mv 2019-12-01
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
artículo original
http://purl.org/coar/resource_type/c_2df8fbb1
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://revistas.uned.ac.cr/index.php/cuadernos/article/view/2627
10.22458/urj.v11i3.2627
url https://revistas.uned.ac.cr/index.php/cuadernos/article/view/2627
identifier_str_mv 10.22458/urj.v11i3.2627
dc.language.none.fl_str_mv spa
language spa
dc.relation.none.fl_str_mv https://revistas.uned.ac.cr/index.php/cuadernos/article/view/2627/3300
https://revistas.uned.ac.cr/index.php/cuadernos/article/view/2627/3460
https://revistas.uned.ac.cr/index.php/cuadernos/article/view/2627/3461
dc.rights.none.fl_str_mv Derechos de autor 2019 UNED Research Journal
acceso abierto
http://purl.org/coar/access_right/c_abf2
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Derechos de autor 2019 UNED Research Journal
acceso abierto
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
text/html
application/epub+zip
dc.publisher.none.fl_str_mv Universidad Estatal a Distancia, Costa Rica
publisher.none.fl_str_mv Universidad Estatal a Distancia, Costa Rica
dc.source.none.fl_str_mv UNED Research Journal; Vol. 11 No. 3 (2019); 334-344
UNED Research Journal; Vol. 11 Núm. 3 (2019); 334-344
1659-441X
1659-4266
reponame:Portal de Revistas UNED
instname:Universidad Estatal a Distancia
instacron:UNED
instname_str Universidad Estatal a Distancia
instacron_str UNED
institution UNED
reponame_str Portal de Revistas UNED
collection Portal de Revistas UNED
repository.name.fl_str_mv Portal de Revistas UNED - Universidad Estatal a Distancia
repository.mail.fl_str_mv ssegura@uned.ac.cr
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