Philip L. Wylie | Authors


Analysis of 17-Pesticide Residues in Apple Using Agilent SampliQ QuEChERS EN Kits and Agilent J&W Ultra Inert columns by GC–MS

The QuEChERS method for pesticide analysis was first introduced by USDA scientists in 2003. The EN method 15662:2007 is a European variation to the QuEChERS method. The method uses acetonitrile extraction, followed by the salting out of water from the sample using anhydrous magnesium sulphate (MgSO4, NaCl and buffering citrate salts to induce liquid–liquid partitioning.