Perfluoro-n-[1,2,3,4-13C4]butanoic acid, 50µg/ml in MeOH, 1,2ml

Arochlor 5460 , 10µg/mL, Solvent-isooctane, Unit 1mL, # of units-10, Cas.no. 11126-42-4

PCB No. 52, 10µg/mL in Isooctane, 10ml

1,2,3,4,6,8,9-Heptachloro[13C12]dibenzofuran, 1.2ml x 50ug/ml, toluene