Analytical development of phenol derivatives in water using liquid chromatography

A high-performance liquid chromatographic analytical method has been developed for the determination of chlorine and nitrophenols at trace level (µg/L) in water, using a reversed-phase elution gradient and an ultraviolet (UV) detector. A Solid Phase Extraction (SPE) method was employed, which involv...

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Autores principales:	Lemus-Solorio, Alfonso, Núñez-Gaytán, María Elena, Núñez-Gaytán, Ana María, Lemus-Solorio, Martha Angélica, Núñez-Hernández, Sandra
Format:	info:eu-repo/semantics/article
Sprog:	spa
Udgivet:	Universidad Autónoma de Baja California 2021
Fag:	Phenolic compounds elution gradient precolumn system high performance liquid chromatography Compuestos fenólicos gradiente de elución sistema de precolumnas cromatografía de líquidos de alta eficiencia
Online adgang:	https://recit.uabc.mx/index.php/revista/article/view/recit_93
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id	repositorioinstitucional-20.500.12930-7024
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spelling	repositorioinstitucional-20.500.12930-70242023-05-09T14:35:08Z Analytical development of phenol derivatives in water using liquid chromatography Desarrollo analitico de derivados del fenol en agua utilizando cromatografia de liquidos Lemus-Solorio, Alfonso Núñez-Gaytán, María Elena Núñez-Gaytán, Ana María Lemus-Solorio, Martha Angélica Núñez-Hernández, Sandra Phenolic compounds elution gradient precolumn system high performance liquid chromatography Compuestos fenólicos gradiente de elución sistema de precolumnas cromatografía de líquidos de alta eficiencia A high-performance liquid chromatographic analytical method has been developed for the determination of chlorine and nitrophenols at trace level (µg/L) in water, using a reversed-phase elution gradient and an ultraviolet (UV) detector. A Solid Phase Extraction (SPE) method was employed, which involved the design of a two-dimensional pre-column system coupled with high-performance liquid chromatography (HPLC) in order to preconcentrate, purify and isolate the solutes in environmental aqueous matrices. These phenolic compounds are considered priority pollutants by the United States Environmental Protection Agency (USEPA); the compounds are 4,6-dinitro-2-methyl phenol, 2,4-dimethylphenol, 4-chloro-3-methyl phenol, 2,4-dichlorophenol, 2,4,6-trichlorophenol, and pentachlorophenol. The developed method is simple, fast, accurate, and precise. Recoveries greater than 90 % were obtained for the phenols 4,6-dinitro-2-methyl phenol, 2,4-dichlorophenol and 2,4,6-trichlorophenol, approximately 80 % for pentachlorophenol and 52 % for 2,4-dimethylphenol. In addition, an acceptable precision (CV ˂ 5 %) was obtained for all solutes at these concentration levels. Se ha desarrollado un método analítico por cromatografía de líquidos de alta eficiencia para la determinación de cloro y nitrofenoles al nivel de trazas (µg/L) en agua, empleando un gradiente de elución de fase reversa y un detector ultravioleta (UV). Se empleó un método de Extracción en Fase Sólida (EFS), que implicó el diseño de un sistema bidimensional de pre-columnas acoplado con la cromatografía de líquidos de alta eficiencia (CLAE) con el fin de efectuar la preconcentración, purificación y aislamiento de los solutos en matrices acuosas ambientales. Estos compuestos fenólicos son considerados contaminantes prioritarios por la Agencia de Protección Ambiental de los Estados Unidos (USEPA); los compuestos son: 4,6-dinitro-2-metilfenol, 2,4-dimetilfenol, 4-cloro-3-metilfenol, 2,4-diclorofenol, 2,4,6-triclorofenol y pentaclorofenol. El método desarrollado es simple, rápido, exacto y preciso. Se obtuvieron recuperaciones mayores del 90 % para los fenoles 4,6-dinitro-2-metilfenol, 2,4-diclorofenol y 2,4,6-triclorofenol, aproximadamente 80 % para el pentaclorofenol y 52 % para el 2,4-dimetilfenol. Además, se obtuvo una precisión (CV ˂ 5 %) aceptable para todos los solutos a estos niveles de concentración. 2021-05-29 2021-06-03T03:52:35Z 2021-06-03T03:52:35Z info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://recit.uabc.mx/index.php/revista/article/view/recit_93 10.37636/recit.v428186 https://hdl.handle.net/20.500.12930/7024 spa https://recit.uabc.mx/index.php/revista/article/view/recit_93/recit_93_pdf https://recit.uabc.mx/index.php/revista/article/view/recit_93/recit_93_html https://recit.uabc.mx/index.php/revista/article/view/recit_93/recit_93_xml Copyright (c) 2021 Alfonso Lemus-Solorio, María Elena Núñez-Gaytán, Ana María Núñez-Gaytán, Martha Angélica Lemus-Solorio, Sandra Núñez-Hernández https://creativecommons.org/licenses/by/4.0 application/pdf text/html text/xml Universidad Autónoma de Baja California REVISTA DE CIENCIAS TECNOLÓGICAS; Vol. 4 No. 2 (2021); 81-86 REVISTA DE CIENCIAS TECNOLÓGICAS; Vol. 4 Núm. 2 (2021); 81-86 2594-1925
institution	Repositorio Institucional
collection	DSpace
language	spa
topic	Phenolic compounds elution gradient precolumn system high performance liquid chromatography Compuestos fenólicos gradiente de elución sistema de precolumnas cromatografía de líquidos de alta eficiencia
spellingShingle	Phenolic compounds elution gradient precolumn system high performance liquid chromatography Compuestos fenólicos gradiente de elución sistema de precolumnas cromatografía de líquidos de alta eficiencia Lemus-Solorio, Alfonso Núñez-Gaytán, María Elena Núñez-Gaytán, Ana María Lemus-Solorio, Martha Angélica Núñez-Hernández, Sandra Analytical development of phenol derivatives in water using liquid chromatography
description	A high-performance liquid chromatographic analytical method has been developed for the determination of chlorine and nitrophenols at trace level (µg/L) in water, using a reversed-phase elution gradient and an ultraviolet (UV) detector. A Solid Phase Extraction (SPE) method was employed, which involved the design of a two-dimensional pre-column system coupled with high-performance liquid chromatography (HPLC) in order to preconcentrate, purify and isolate the solutes in environmental aqueous matrices. These phenolic compounds are considered priority pollutants by the United States Environmental Protection Agency (USEPA); the compounds are 4,6-dinitro-2-methyl phenol, 2,4-dimethylphenol, 4-chloro-3-methyl phenol, 2,4-dichlorophenol, 2,4,6-trichlorophenol, and pentachlorophenol. The developed method is simple, fast, accurate, and precise. Recoveries greater than 90 % were obtained for the phenols 4,6-dinitro-2-methyl phenol, 2,4-dichlorophenol and 2,4,6-trichlorophenol, approximately 80 % for pentachlorophenol and 52 % for 2,4-dimethylphenol. In addition, an acceptable precision (CV ˂ 5 %) was obtained for all solutes at these concentration levels.
format	info:eu-repo/semantics/article
author	Lemus-Solorio, Alfonso Núñez-Gaytán, María Elena Núñez-Gaytán, Ana María Lemus-Solorio, Martha Angélica Núñez-Hernández, Sandra
author_facet	Lemus-Solorio, Alfonso Núñez-Gaytán, María Elena Núñez-Gaytán, Ana María Lemus-Solorio, Martha Angélica Núñez-Hernández, Sandra
author_sort	Lemus-Solorio, Alfonso
title	Analytical development of phenol derivatives in water using liquid chromatography
title_short	Analytical development of phenol derivatives in water using liquid chromatography
title_full	Analytical development of phenol derivatives in water using liquid chromatography
title_fullStr	Analytical development of phenol derivatives in water using liquid chromatography
title_full_unstemmed	Analytical development of phenol derivatives in water using liquid chromatography
title_sort	analytical development of phenol derivatives in water using liquid chromatography
publisher	Universidad Autónoma de Baja California
publishDate	2021
url	https://recit.uabc.mx/index.php/revista/article/view/recit_93
_version_	1792609459851231232

Analytical development of phenol derivatives in water using liquid chromatography

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