PCB Isomer Standard, 100µg/ml in Isooctane, 1ml

Internal Reference Standard

1-Ethyl-4-methylbenzene (4-ethyltoluene, p-ethyltoluene), 1000µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 622-96-8

U{13C18}-Sterigmatocystine, 25µg/mL, Solvent-acetonitrile, Unit 1.2mL, # of units-1, Cas.no.