2,4-D, 10.0 µg/ml, Acetonitrile, 10ml

Pyrene-d10, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 1718-52-1

Heptachlor-endo-epoxide (isomer A), 1.2mL x 100ug/mL, nonane

EPA Method 552 Surrogate Standard Methyl Ester