EPA Method 8260B Purgeable Internal Standard

Benzo[b]naphtho[1,2-d]thiophene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 205-43-6

Imidacloprid guanidine hydrochloride, 100 µg/ml,

2-Chloroethanol, 1000µg/ml in Water, 1ml