Pyrazophos, 100 µg/ml, Ethyl acetate, 5ml

2-Perfluorooctyl-[1,2-13C2]-ethanol (8:2), 50µg/ml in MeOH, 1,2ml

Chlorpyrifos-d10 (O,O-diethyl-d10),100 µg/mL,isooctane,1mL,

Picaridin, 100 µg/ml, Acetonitrile, 1ml