Use of Poly(vinyl alcohol)-Malic Acid (CLHPMA) Hydrogels and Chitosan Coated Calcium Alginate (CCCA) Microparticles as Potential Sorbent Phases for the Extraction and Quantitative Determination of Pesticides from Aqueous Solutions

Pesticides are used worldwide to increase crop yields in agriculture. However, their toxicity and accumulation capacity can make them toxic to the environment, animals and humans. In the case of workers chronically exposed to these substances, they must be sampled continuously, so urine is an excell...

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Autores principales:	Cristian Valdés, Oscar Valdés, Daniel Bustos, Diana Abril, Gustavo Cabrera-Barjas, Alfredo Pereira, Jorge Villaseñor, Efraín Polo-Cuadrado, Gustavo Carreño, Esteban F. Durán-Lara, Adolfo Marican
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	sorbent phase CLPHMA hydrogel chitosan alginate molecular dynamics simulation Organic chemistry QD241-441
Acceso en línea:	https://doaj.org/article/ca13f1b9dc1c4e8ea78e1f2825c79468
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spelling	oai:doaj.org-article:ca13f1b9dc1c4e8ea78e1f2825c794682021-11-25T18:49:11ZUse of Poly(vinyl alcohol)-Malic Acid (CLHPMA) Hydrogels and Chitosan Coated Calcium Alginate (CCCA) Microparticles as Potential Sorbent Phases for the Extraction and Quantitative Determination of Pesticides from Aqueous Solutions10.3390/polym132239932073-4360https://doaj.org/article/ca13f1b9dc1c4e8ea78e1f2825c794682021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4360/13/22/3993https://doaj.org/toc/2073-4360Pesticides are used worldwide to increase crop yields in agriculture. However, their toxicity and accumulation capacity can make them toxic to the environment, animals and humans. In the case of workers chronically exposed to these substances, they must be sampled continuously, so urine is an excellent option. In this sense, this study proposes to use poly(vinyl alcohol)-malic acid hydrogels, and chitosan-coated calcium alginate as new sorbent phases to be used in pesticide determination processes in urine. To better understand the behavior of these materials in the capture and desorption process, molecular dynamics simulations (MDS) were used, and desorption experiments were performed, using mechanical agitation, ultrasound, and pH variation in the desorption process, in order to optimize the parameters to obtain better recoveries. Under the optimal experimental conditions, the maximum recoveries were of the order of 11% (CFN), 3% (KCF), 53% (DMT), 18% (MTD) and 35% (MTL). Although the recoveries were not exhaustive, they are a first approximation for the use of these new sorbent phases in the determination of this type of compound in aqueous solutions and urine.Cristian ValdésOscar ValdésDaniel BustosDiana AbrilGustavo Cabrera-BarjasAlfredo PereiraJorge VillaseñorEfraín Polo-CuadradoGustavo CarreñoEsteban F. Durán-LaraAdolfo MaricanMDPI AGarticlesorbent phaseCLPHMAhydrogelchitosanalginatemolecular dynamics simulationOrganic chemistryQD241-441ENPolymers, Vol 13, Iss 3993, p 3993 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	sorbent phase CLPHMA hydrogel chitosan alginate molecular dynamics simulation Organic chemistry QD241-441
spellingShingle	sorbent phase CLPHMA hydrogel chitosan alginate molecular dynamics simulation Organic chemistry QD241-441 Cristian Valdés Oscar Valdés Daniel Bustos Diana Abril Gustavo Cabrera-Barjas Alfredo Pereira Jorge Villaseñor Efraín Polo-Cuadrado Gustavo Carreño Esteban F. Durán-Lara Adolfo Marican Use of Poly(vinyl alcohol)-Malic Acid (CLHPMA) Hydrogels and Chitosan Coated Calcium Alginate (CCCA) Microparticles as Potential Sorbent Phases for the Extraction and Quantitative Determination of Pesticides from Aqueous Solutions
description	Pesticides are used worldwide to increase crop yields in agriculture. However, their toxicity and accumulation capacity can make them toxic to the environment, animals and humans. In the case of workers chronically exposed to these substances, they must be sampled continuously, so urine is an excellent option. In this sense, this study proposes to use poly(vinyl alcohol)-malic acid hydrogels, and chitosan-coated calcium alginate as new sorbent phases to be used in pesticide determination processes in urine. To better understand the behavior of these materials in the capture and desorption process, molecular dynamics simulations (MDS) were used, and desorption experiments were performed, using mechanical agitation, ultrasound, and pH variation in the desorption process, in order to optimize the parameters to obtain better recoveries. Under the optimal experimental conditions, the maximum recoveries were of the order of 11% (CFN), 3% (KCF), 53% (DMT), 18% (MTD) and 35% (MTL). Although the recoveries were not exhaustive, they are a first approximation for the use of these new sorbent phases in the determination of this type of compound in aqueous solutions and urine.
format	article
author	Cristian Valdés Oscar Valdés Daniel Bustos Diana Abril Gustavo Cabrera-Barjas Alfredo Pereira Jorge Villaseñor Efraín Polo-Cuadrado Gustavo Carreño Esteban F. Durán-Lara Adolfo Marican
author_facet	Cristian Valdés Oscar Valdés Daniel Bustos Diana Abril Gustavo Cabrera-Barjas Alfredo Pereira Jorge Villaseñor Efraín Polo-Cuadrado Gustavo Carreño Esteban F. Durán-Lara Adolfo Marican
author_sort	Cristian Valdés
title	Use of Poly(vinyl alcohol)-Malic Acid (CLHPMA) Hydrogels and Chitosan Coated Calcium Alginate (CCCA) Microparticles as Potential Sorbent Phases for the Extraction and Quantitative Determination of Pesticides from Aqueous Solutions
title_short	Use of Poly(vinyl alcohol)-Malic Acid (CLHPMA) Hydrogels and Chitosan Coated Calcium Alginate (CCCA) Microparticles as Potential Sorbent Phases for the Extraction and Quantitative Determination of Pesticides from Aqueous Solutions
title_full	Use of Poly(vinyl alcohol)-Malic Acid (CLHPMA) Hydrogels and Chitosan Coated Calcium Alginate (CCCA) Microparticles as Potential Sorbent Phases for the Extraction and Quantitative Determination of Pesticides from Aqueous Solutions
title_fullStr	Use of Poly(vinyl alcohol)-Malic Acid (CLHPMA) Hydrogels and Chitosan Coated Calcium Alginate (CCCA) Microparticles as Potential Sorbent Phases for the Extraction and Quantitative Determination of Pesticides from Aqueous Solutions
title_full_unstemmed	Use of Poly(vinyl alcohol)-Malic Acid (CLHPMA) Hydrogels and Chitosan Coated Calcium Alginate (CCCA) Microparticles as Potential Sorbent Phases for the Extraction and Quantitative Determination of Pesticides from Aqueous Solutions
title_sort	use of poly(vinyl alcohol)-malic acid (clhpma) hydrogels and chitosan coated calcium alginate (ccca) microparticles as potential sorbent phases for the extraction and quantitative determination of pesticides from aqueous solutions
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/ca13f1b9dc1c4e8ea78e1f2825c79468
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Use of Poly(vinyl alcohol)-Malic Acid (CLHPMA) Hydrogels and Chitosan Coated Calcium Alginate (CCCA) Microparticles as Potential Sorbent Phases for the Extraction and Quantitative Determination of Pesticides from Aqueous Solutions

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