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The current work demonstrates the use of two new and unique phases, which have been optimized for the analysis of all classes of pesticides.The phase chemistry improves separation and peak shape for the more polar pesticide compounds when compared to standard 5% phenyl columns.Selectivity data is compared between a 5ms type phase and the two new columns.Multi-pesticide residue screening is evaluated over 250 different pesticides commonly analyzed from fruits and vegetables.The unique selectivity offered by the two phases improves resolution for multi-component analytes providing a more unique elution pattem, which can be used to identify closely eluting analytes.