Pencycuron, 100 µg/ml, Acetonitrile, 5ml

4-Chloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

U{13C17}-Aflatoxin B2, 0.5µg/mL, Solvent-acetonitrile, Unit 1.2mL, # of units-1, Cas.no.

1,3-Dioxolane