Analytical development of phenol derivatives in water using liquid chromatography

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
格式: Online
语言:spa
出版: Universidad Autónoma de Baja California 2021
在线阅读:https://recit.uabc.mx/index.php/revista/article/view/93
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spelling recit-article-932022-10-26T16:36:20Z Analytical development of phenol derivatives in water using liquid chromatography Desarrollo analítico de derivados del fenol en agua utilizando cromatografía de líquidos 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. Universidad Autónoma de Baja California 2021-05-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf text/html text/xml https://recit.uabc.mx/index.php/revista/article/view/93 10.37636/recit.v428186 REVISTA DE CIENCIAS TECNOLÓGICAS; Vol. 4 No. 2 (2021): April-June; 81-86 REVISTA DE CIENCIAS TECNOLÓGICAS; Vol. 4 Núm. 2 (2021): Abril-Junio; 81-86 2594-1925 spa https://recit.uabc.mx/index.php/revista/article/view/93/270 https://recit.uabc.mx/index.php/revista/article/view/93/271 https://recit.uabc.mx/index.php/revista/article/view/93/272 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
institution RECIT
collection OJS
language spa
format Online
author Lemus-Solorio, Alfonso
Núñez-Gaytán, María Elena
Núñez-Gaytán, Ana María
Lemus-Solorio, Martha Angélica
Núñez-Hernández, Sandra
spellingShingle 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
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
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.
publisher Universidad Autónoma de Baja California
publishDate 2021
url https://recit.uabc.mx/index.php/revista/article/view/93
_version_ 1792095371535581184

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