2,4'-DDE, 10.0 µg/ml, Ethyl acetate, 10ml

D6-Ethanol, 100 µg/ml, Acetonitrile, 1ml

Chrysene-d12, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-10, Cas.no. 1719-03-5

3-Ethyltoluene, 200 µg/ml, Methanol, 1ml