EPA Method 601 Internal Standard Back Catalog number: 19094 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 14728.22-K-AN Δ9-THC Carboxylic Acid A, 1000µg/ml in Acetonitrile, 1ml Price on request 0800.10-K-IO Adamantane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 281-23-2 Price on request LA18000013TO Pesticide-Mix 13, 10µg/ml in Toluene, 1ml Price on request