Optimization and validation of liquid–liquid extraction with low temperature partitioning for determination of carbamates in water

dc.creatorGoulart, Simone Machado
dc.creatorAlves, Renata Domingos
dc.creatorNeves, Antônio Augusto
dc.creatorQueiroz, José Humberto de
dc.creatorAssis, Tamires Condé de
dc.creatorQueiroz, Maria Eliana L.R. de
dc.date2018-05-10T12:09:58Z
dc.date2018-05-10T12:09:58Z
dc.date2010-05-10
dc.date.accessioned2023-09-27T21:39:22Z
dc.date.available2023-09-27T21:39:22Z
dc.identifier00032670
dc.identifierhttps://doi.org/10.1016/j.aca.2010.05.003
dc.identifierhttp://www.locus.ufv.br/handle/123456789/19437
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8964156
dc.descriptionUsing a 23 experimental design, liquid–liquid extraction with low temperature partitioning (LLE-LTP) was optimized and validated for analysis of three carbamates (aldicarb, carbofuran and carbaryl) in water samples. In this method, 2.0 mL of sample is placed in contact with 4.0 mL of acetonitrile. After agitation, the sample is placed in a freezer for 3 h for phase separation. The organic extract is analyzed by high performance liquid chromatography with ultraviolet detection (HPLC-UV). For validation of the technique, the following figures of merit were evaluated: accuracy, precision, detection and quantification limits, linearity, sensibility and selectivity. Extraction recovery percentages of the carbamates aldicarb, carbofuran and carbaryl were 90%, 95% and 96%, respectively. Even though extremely low volumes of sample and solvent were used, the extraction method was selective and the detection and quantification limits were between 5.0 and 10.0 μg L−1, and 17.0 and 33.0 μg L−1, respectively.
dc.formatpdf
dc.formatapplication/pdf
dc.languageeng
dc.publisherAnalytica Chimica Acta
dc.relationv. 671, Issues 1–2, p. 41-47, June 2010
dc.rightsElsevier B.V.
dc.subjectCarbamates
dc.subjectWater
dc.subjectLow temperature partitioning
dc.subjectAldicarb
dc.subjectCarbofuran
dc.subjectCarbaryl
dc.titleOptimization and validation of liquid–liquid extraction with low temperature partitioning for determination of carbamates in water
dc.typeArtigo


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