Isoxaflutole, 100 µg/ml, Acetonitrile, 5ml

15N3-Atrazine-desethyl, 100 µg/ml, Acetonitrile,

Irbesartan, 1000µg/mL in MeOH, 1ml

Paraquat dichloride, 100 µg/ml, Water, 1ml