Multi-residue analysis of pesticides in crude food extracts using a simple extraction technique and LC/MS/MS

Analysis of pesticide residues in food is typically tedious and time-consuming due to the necessary extraction and clean up procedures. Furthermore, to deal with the ever-growing number of pesticides, the food safety laboratories need to ideally screen as many compounds as possible in a single run which may reach maximum residual limits (MRL); typically 10 ppb in food matrices. In this study, we illustrate the results utilizing an UF MRM capability (just 5 msec. MRM measurement includes dwell and pause time) with 5 msec. polarity switching (UF switching) for the analysis of 146 pesticides in crude food extracts by using easy and simple sample preparation technique.