2,4-D, 100 µg/ml, Acetonitrile, 5ml

alphaßß (20S,24RS)-24-Ethylcholestane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no.

Naphthenic acids, pract, neat, Solvent-neat, Unit 10g, # of units-1, Cas.no. 1338-24-5

EPA Method 537 Internal Standard Primary Dilution Standard (IS PDS), 1.2ml, methanol