title: Response surface methodology for the microwave-assisted extraction of insecticides from soil samples.
abstract: The extraction of two pyrethroid insecticides (deltamethrin and alpha-cypermethrin) together with three organophosphorus insecticides (dimethoate, diazinon and malathion) from soil samples was carried out with microwave-assisted technology. Experimental designs showed that extraction temperature, addition of water to the extractant and solvent/soil ratio were the variables that affected the recoveries of the pesticide the most. Response surface methodology was applied to find the optimum values of the variables involved in the extractions of the analytes. In addition, in order to achieve near-optimal extraction conditions, a desirability function was used to optimize the five pesticides simultaneously. The optimized conditions were applied to different types of soils.
authors.affiliation: Departamento de Ciencias de la Tierra y Química Ambiental, Estación Experimental del Zaidín (CSIC), c/Profesor Albareda, 1, 18008 Granada, Spain.
authors.forename: M Carmen
authors.initials: MC
authors.lastname: Hernández-Soriano
authors.forename: Aránzazu
authors.initials: A
authors.lastname: Peña
authors.forename: M Dolores
authors.initials: MD
authors.lastname: Mingorance
mesh_terms: D002138:Calibration; D007306:Insecticides / Q000302:isolation & purification*; D008872:Microwaves; D012989:Soil Pollutants / Q000302:isolation & purification*; D013499:Surface Properties
chemical_list: D007306:Insecticides; D012989:Soil Pollutants