EPA Method 8020 Analytes

Isobutyl 4-hydroxybenzoate, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 4247-02-3

Gabapentin, 1000µg/ml in MeOH, 1ml

2,6-Dimethylnaphthalene, 50 µg/mL in Toluene, 1ml