Abstract
Developed and validated a fast, simple and effective method based on the use of DLLME technique and determination by GC-MS of 26 pesticides in SE. To carry out the extraction of the pesticides of the matrix, 70μL of mix of pesticides (1.5μg/mL) was added to 5.0mL of SE, containing 1.0g of sodium chloride and 3.0mL of acetonitrile. The results of validation were suitable. The calibration curve was linear in the range of 0.500-5.0μg/mL. The method showed a limit of detection and quantification of 0.17μg/mL and 0.50μg/mL, respectively. The recovery recovering between 47% and 115%, with relative standard deviation (RSD) of <20% for fortification levels (range of 1.0-3.0μg/mL). The method validated can be applied for routine analysis in soy-based drinks, considering it is fast, easy to perform and has satisfactory validation results.
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