4,4'-DDT, 100 µg/ml, Acetonitrile, 5ml

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

U{13C17}-Aflatoxin B1, 0.5µg/mL, Solvent-acetonitrile, Unit 1.2mL, # of units-1, Cas.no.

Metolachlor ESA sodium salt, 100µg/ml in MeOH, 1ml