D6-Metolachlor, 100µg/ml in Acetonitrile, 1ml

Demeton-S-methyl, 10.0 µg/ml, Acetonitrile, 10ml

Diethyl phthalate-3,4,5,6-d4, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 93952-12-6

13C6-Pentachlorophenol, 100 µg/ml, Cyclohexane,