Biological and chemical analysis in the detection of methamidophos in soil: ecotoxicological test with liquid chromatography/mass spectrometry

The development of analytical methods which meet the resolution to quantify pesticides residues in complex environmental matrices still represents a challenge for many laboratories. The integration of two analytical methods, an ecotoxicological and a chemical one, demonstrates the potential for envi...

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Principais autores: Chiquetti, Samanta Cristina, Dantas, Tereza Neuma de Castro, Silva, Djalma Ribeiro da, Barros Neto, Eduardo Lins de, Medeiros, Guilherme Fulgêncio de, Bertoletti, Eduardo
Formato: article
Idioma:English
Publicado em: International Journal of Current Research - IJCR
Assuntos:
Methamidophos
Adsorption
Soil
Ceriodaphnia dubia
LC-MS/MS
Endereço do item:https://repositorio.ufrn.br/handle/123456789/44989
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spelling ri-123456789-449892021-11-23T14:40:52Z Biological and chemical analysis in the detection of methamidophos in soil: ecotoxicological test with liquid chromatography/mass spectrometry Chiquetti, Samanta Cristina Dantas, Tereza Neuma de Castro Silva, Djalma Ribeiro da Barros Neto, Eduardo Lins de Medeiros, Guilherme Fulgêncio de Bertoletti, Eduardo Methamidophos Adsorption Soil Ceriodaphnia dubia LC-MS/MS The development of analytical methods which meet the resolution to quantify pesticides residues in complex environmental matrices still represents a challenge for many laboratories. The integration of two analytical methods, an ecotoxicological and a chemical one, demonstrates the potential for environmental analysis of methamidophos. This study tested two soils: a clayey and a sandy one. Both soils, when in contact with methamidophos, followed the kinetic pseudo-second order model. The clayey soil showed a greater adsorption of methamidophos and followed the Freundlich model, while the sandy, followed the Langmuir model. The technique of LC-MS/MS analytical (Liquid Chromatography/Mass Spectrometry) displayed satisfactory validation parameters, such as linearity, interval, precision, accuracy, and sensitivity. In chronic ecotoxicological tests with Ceriodaphnia dubia, the NOEC (No Observed Effect Concentration) were 4.93 and 3.24 ng L-1 for the elutriates of sandy and clayey soils, respectively. The ecotoxicological test with Ceriodaphnia dubia showed excellent sensitivity for detecting methamidophos in clayey and sandy soils, and it was used for screening the results. However, by decreasing the concentration of the standard analytical methamidophos and adjusting the chemical validation parameters, one could find the limit of quantification (LOQ) in ng L-1, compatible with the established in the ecotoxicological test. The described methods were used as an analytical tool of methamidophos in soils 2021-11-23T14:40:51Z 2021-11-23T14:40:51Z 2016-03-16 article CHIQUETTE, S. C.; SILVA, D. R.; BERTOLETTI, E.; MEDEIROS, G. F.; BARROS NETO, E. L. DE; DANTAS, Teresa Neuma de Castro . BIOLOGICAL AND CHEMICAL ANALYSIS IN THE DETECTION OF METHAMIDOPHOS IN SOIL: ECOTOXICOLOGICAL TEST WITH LIQUID CHROMATOGRAPHE / MASS SPECTROMETRY. International Journal of Current Research, v. 08, p. 27438-27444, 2016. Disponível em: http://www.journalcra.com/article/biological-and-chemical-analysis-detection-methamidophos-soil-ecotoxicological-test-liquid. Acesso em: 02 jul. 2021. 0975-833X https://repositorio.ufrn.br/handle/123456789/44989 en Attribution 3.0 Brazil http://creativecommons.org/licenses/by/3.0/br/ application/pdf International Journal of Current Research - IJCR
institution Repositório Institucional
collection RI - UFRN
language English
topic Methamidophos
Adsorption
Soil
Ceriodaphnia dubia
LC-MS/MS
spellingShingle Methamidophos
Adsorption
Soil
Ceriodaphnia dubia
LC-MS/MS
Chiquetti, Samanta Cristina
Dantas, Tereza Neuma de Castro
Silva, Djalma Ribeiro da
Barros Neto, Eduardo Lins de
Medeiros, Guilherme Fulgêncio de
Bertoletti, Eduardo
Biological and chemical analysis in the detection of methamidophos in soil: ecotoxicological test with liquid chromatography/mass spectrometry
description The development of analytical methods which meet the resolution to quantify pesticides residues in complex environmental matrices still represents a challenge for many laboratories. The integration of two analytical methods, an ecotoxicological and a chemical one, demonstrates the potential for environmental analysis of methamidophos. This study tested two soils: a clayey and a sandy one. Both soils, when in contact with methamidophos, followed the kinetic pseudo-second order model. The clayey soil showed a greater adsorption of methamidophos and followed the Freundlich model, while the sandy, followed the Langmuir model. The technique of LC-MS/MS analytical (Liquid Chromatography/Mass Spectrometry) displayed satisfactory validation parameters, such as linearity, interval, precision, accuracy, and sensitivity. In chronic ecotoxicological tests with Ceriodaphnia dubia, the NOEC (No Observed Effect Concentration) were 4.93 and 3.24 ng L-1 for the elutriates of sandy and clayey soils, respectively. The ecotoxicological test with Ceriodaphnia dubia showed excellent sensitivity for detecting methamidophos in clayey and sandy soils, and it was used for screening the results. However, by decreasing the concentration of the standard analytical methamidophos and adjusting the chemical validation parameters, one could find the limit of quantification (LOQ) in ng L-1, compatible with the established in the ecotoxicological test. The described methods were used as an analytical tool of methamidophos in soils
format article
author Chiquetti, Samanta Cristina
Dantas, Tereza Neuma de Castro
Silva, Djalma Ribeiro da
Barros Neto, Eduardo Lins de
Medeiros, Guilherme Fulgêncio de
Bertoletti, Eduardo
author_facet Chiquetti, Samanta Cristina
Dantas, Tereza Neuma de Castro
Silva, Djalma Ribeiro da
Barros Neto, Eduardo Lins de
Medeiros, Guilherme Fulgêncio de
Bertoletti, Eduardo
author_sort Chiquetti, Samanta Cristina
title Biological and chemical analysis in the detection of methamidophos in soil: ecotoxicological test with liquid chromatography/mass spectrometry
title_short Biological and chemical analysis in the detection of methamidophos in soil: ecotoxicological test with liquid chromatography/mass spectrometry
title_full Biological and chemical analysis in the detection of methamidophos in soil: ecotoxicological test with liquid chromatography/mass spectrometry
title_fullStr Biological and chemical analysis in the detection of methamidophos in soil: ecotoxicological test with liquid chromatography/mass spectrometry
title_full_unstemmed Biological and chemical analysis in the detection of methamidophos in soil: ecotoxicological test with liquid chromatography/mass spectrometry
title_sort biological and chemical analysis in the detection of methamidophos in soil: ecotoxicological test with liquid chromatography/mass spectrometry
publisher International Journal of Current Research - IJCR
publishDate 2021
url https://repositorio.ufrn.br/handle/123456789/44989
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