EPA Method 8141 Surrogate Standard Back Catalog number: 92387 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 82706 EPA Method 8270A Analytes Price on request 2136.21-K-IO Tri-p-tolylphosphate, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 78-32-0 Price on request 673026 Amoxicillin trihydrate, 250mg Price on request