Fig. 3From: Validation of a modified QuEChERS method for the extraction of multiple classes of pharmaceuticals from soilsLiquid chromatography–high-resolution mass spectrometry (LC–HRMS) chromatograms of soil “1” samples spiked with individual standard solutions (top) or multi-standards solution (bottom) up to the concentration of 100 µg L−1 of each pharmaceuticalBack to article page