Indigotine (E 132), 1g

Sodium perfluoro-1-[2,3,4-13C3]butanesulfonate, 50µg/ml in MeOH, 1,2ml

Endrin ketone

U{13C17}-Aflatoxin G1, 0.5µg/ml, Solvent-acetonitrile, Unit 1.2mL, # of units-1, Cas.no.