Ethanol standard in water,0.5g/L,water, 1.5mL

4,4'-DDE, 100 µg/ml, Acetonitrile, 5ml

10-Methyl-11(H)-benzo[a]carbazole, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no.

Sample Fortification Solution, 1.2ml, nonane