Figure 4

Representative MRM chromatograms of a working standard solution (1.0 μg/l for the 25 pesticides except fenaminosulf, procymidone and hexaconazole) (a), a blank sample (b) and a spiked blank sample (0.01 mg/kg for the 25 pesticides except fenaminosulf, procymidone and hexaconazole) (c).