2,4-DB-methyl ester, 100 µg/ml, Ethyl acetate, 5

Ethanol standard in water,4.0g/L,water, 1.5mL

3,4-Dimethylphenanthrene , 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 66291-31-4

2-n-Octylphenol-mono-ethoxylate, 100 µg/ml, Aceto