Perfluoro-n-[1,2-13C2]hexanoic acid, 50µg/ml in MeOH, 1,2ml

PCB No. 30, 10µg/ml in Isooctane, 10ml

2,2',3,3',4,4',5,5'-Octachloro[13C12]biphenyl, 50.0µg/mL in Nonane/10% toluene, 1,2ml

Desmedipham, 250mg