Endosulfan (alpha and beta), 100 ng/µl, 1ml

4,4'-Dibromobiphenyl, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 92-86-4

Methyl Arsonic Acid Disodium Salt (~40%), 250mg

Perfluoro-n-[13C8]octanoic acid, 50µg/ml in MeOH, 1,2ml