EPA Method 502/524 Fortification Solution

Tolfenpyrad, 10.0 µg/ml, Acetonitrile, 10ml

1-Nonene, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 124-11-8

Heptachlor-endo-epoxide (trans-, isomer A), 10µg/ml in CY, 10ml