SIMULTANEOUS SPECTROPHOTOMETRIC DETERMINATION OF ATRAZINE AND DICAMBA IN WATER BY PARTIAL LEAST SQUARES REGRESSION

It is presented the development of a new and easy analytical method for the simultaneous determination of atrazine and dicamba in water. Under the experimental conditions proposed, atrazine showed a linear dynamic range of 0.3 to 4.9 µg mL-1, a limit of detection of 0.1 µg mL-1 and a limit of quanti...

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Autores principales:	Amador-Hernández,Judith, Velázquez-Manzanares,Miguel, Gutiérrez-Ortiz,María del Rocío, Hernández-Carlos,Beatriz, Peral-Torres,Magaly, López-de- Alba,Pedro Luis
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2005
Materias:	Herbicides atrazine dicamba PLS spectrophotometry
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072005000200004
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spelling	oai:scielo:S0717-970720050002000042005-07-19SIMULTANEOUS SPECTROPHOTOMETRIC DETERMINATION OF ATRAZINE AND DICAMBA IN WATER BY PARTIAL LEAST SQUARES REGRESSIONAmador-Hernández,JudithVelázquez-Manzanares,MiguelGutiérrez-Ortiz,María del RocíoHernández-Carlos,BeatrizPeral-Torres,MagalyLópez-de- Alba,Pedro Luis Herbicides atrazine dicamba PLS spectrophotometry It is presented the development of a new and easy analytical method for the simultaneous determination of atrazine and dicamba in water. Under the experimental conditions proposed, atrazine showed a linear dynamic range of 0.3 to 4.9 µg mL-1, a limit of detection of 0.1 µg mL-1 and a limit of quantification of 0.3 µg mL-1; similarly, dicamba showed a linear dynamic range of 0.8 to 8.8 µg mL-1, a limit of detection of 0.2 µg mL-1 and a limit of quantification of 0.8 µ mL-1. Partial Least Squares Regression (Type 1) was applied for the resolution of spectral interferences between analytes, obtaining recovery percentages higher than 95 % for both compounds in synthetic mixtures. Finally, quantitative determination of both herbicides in tap, well and sea water samples, was carried out successfully by the proposed method, previous preconcentration of the analytes by solid phase extractioninfo:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.50 n.2 20052005-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072005000200004en10.4067/S0717-97072005000200004
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Herbicides atrazine dicamba PLS spectrophotometry
spellingShingle	Herbicides atrazine dicamba PLS spectrophotometry Amador-Hernández,Judith Velázquez-Manzanares,Miguel Gutiérrez-Ortiz,María del Rocío Hernández-Carlos,Beatriz Peral-Torres,Magaly López-de- Alba,Pedro Luis SIMULTANEOUS SPECTROPHOTOMETRIC DETERMINATION OF ATRAZINE AND DICAMBA IN WATER BY PARTIAL LEAST SQUARES REGRESSION
description	It is presented the development of a new and easy analytical method for the simultaneous determination of atrazine and dicamba in water. Under the experimental conditions proposed, atrazine showed a linear dynamic range of 0.3 to 4.9 µg mL-1, a limit of detection of 0.1 µg mL-1 and a limit of quantification of 0.3 µg mL-1; similarly, dicamba showed a linear dynamic range of 0.8 to 8.8 µg mL-1, a limit of detection of 0.2 µg mL-1 and a limit of quantification of 0.8 µ mL-1. Partial Least Squares Regression (Type 1) was applied for the resolution of spectral interferences between analytes, obtaining recovery percentages higher than 95 % for both compounds in synthetic mixtures. Finally, quantitative determination of both herbicides in tap, well and sea water samples, was carried out successfully by the proposed method, previous preconcentration of the analytes by solid phase extraction
author	Amador-Hernández,Judith Velázquez-Manzanares,Miguel Gutiérrez-Ortiz,María del Rocío Hernández-Carlos,Beatriz Peral-Torres,Magaly López-de- Alba,Pedro Luis
author_facet	Amador-Hernández,Judith Velázquez-Manzanares,Miguel Gutiérrez-Ortiz,María del Rocío Hernández-Carlos,Beatriz Peral-Torres,Magaly López-de- Alba,Pedro Luis
author_sort	Amador-Hernández,Judith
title	SIMULTANEOUS SPECTROPHOTOMETRIC DETERMINATION OF ATRAZINE AND DICAMBA IN WATER BY PARTIAL LEAST SQUARES REGRESSION
title_short	SIMULTANEOUS SPECTROPHOTOMETRIC DETERMINATION OF ATRAZINE AND DICAMBA IN WATER BY PARTIAL LEAST SQUARES REGRESSION
title_full	SIMULTANEOUS SPECTROPHOTOMETRIC DETERMINATION OF ATRAZINE AND DICAMBA IN WATER BY PARTIAL LEAST SQUARES REGRESSION
title_fullStr	SIMULTANEOUS SPECTROPHOTOMETRIC DETERMINATION OF ATRAZINE AND DICAMBA IN WATER BY PARTIAL LEAST SQUARES REGRESSION
title_full_unstemmed	SIMULTANEOUS SPECTROPHOTOMETRIC DETERMINATION OF ATRAZINE AND DICAMBA IN WATER BY PARTIAL LEAST SQUARES REGRESSION
title_sort	simultaneous spectrophotometric determination of atrazine and dicamba in water by partial least squares regression
publisher	Sociedad Chilena de Química
publishDate	2005
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072005000200004
work_keys_str_mv	AT amadorhernandezjudith simultaneousspectrophotometricdeterminationofatrazineanddicambainwaterbypartialleastsquaresregression AT velazquezmanzanaresmiguel simultaneousspectrophotometricdeterminationofatrazineanddicambainwaterbypartialleastsquaresregression AT gutierrezortizmariadelrocio simultaneousspectrophotometricdeterminationofatrazineanddicambainwaterbypartialleastsquaresregression AT hernandezcarlosbeatriz simultaneousspectrophotometricdeterminationofatrazineanddicambainwaterbypartialleastsquaresregression AT peraltorresmagaly simultaneousspectrophotometricdeterminationofatrazineanddicambainwaterbypartialleastsquaresregression AT lopezdealbapedroluis simultaneousspectrophotometricdeterminationofatrazineanddicambainwaterbypartialleastsquaresregression
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SIMULTANEOUS SPECTROPHOTOMETRIC DETERMINATION OF ATRAZINE AND DICAMBA IN WATER BY PARTIAL LEAST SQUARES REGRESSION

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