NDLI: Desenvolvimento de metodologias analíticas para determinação de clorpirifós em amostras aquosas empregando a microextração líquido-líquido dispersiva seguida por HPLC-UV

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Desenvolvimento de metodologias analíticas para determinação de clorpirifós em amostras aquosas empregando a microextração líquido-líquido dispersiva seguida por HPLC-UV

Content Provider	Semantic Scholar
Author	Oliveira, Adão Francisco De Honório, Leandro Matos, Mayara P. V. Souza, João Raul B. De
Copyright Year	2019
Abstract	DEVELOPMENT OF ANALYTICAL METHODOLOGIES FOR THE DETERMINATION OF CHLORPYRYPHES IN AQUEOUS SAMPLES EMPLOYING THE DISPERSIVE LIQUID MICROEXTRACTION FOLLOWED BY HPLC-UV. The miniaturized extraction techniques use less aggressive methods to the environment, since they generate less waste and spend a minimum of organic solvents, besides having a good selectivity and specificity in the extractions. In this context, liquid-liquid dispersive microextraction (DLLME) has been highlighting. Thus, the present article describes an optimization of the DLLME using low environmental impact extractor solvent to determine the chlorpyrifos insecticide in water. The analytical curves presented values for the correlation coefficient (r) higher than 0.999. The limits of detection and quantification were 0.24 and 0.80 μg L, respectively. There were recoveries between 93 and 97 %, with relative standard deviation (RSD) varying between 1.00 and 3.61%. The developed methods presented accurate and reliable results, are simple and safe, characteristics important for the implementation of a methodology as a routine analysis, and were applied in the determination of chlorpyrifos in water samples from five points along the Rio Dourados, near the city of Fátima do Sul.
Starting Page	9
Ending Page	15
Page Count	7
File Format	PDF HTM / HTML
DOI	10.21577/0100-4042.20170453
Volume Number	43
Alternate Webpage(s)	http://static.sites.sbq.org.br/quimicanova.sbq.org.br/pdf/v43n1a02.pdf
Alternate Webpage(s)	http://www.quimicanova.sbq.org.br/imagebank/pdf/AR20190191.pdf
Alternate Webpage(s)	https://doi.org/10.21577/0100-4042.20170453
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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