EPA Method 548.1 Analyte Back Catalog number: 30077 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 674647 AMPA, 100mg Price on request 2271.4-1ML Ethyl acetate, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 141-78-6 Price on request 31056 EPA Method 552.1 - Surrogate Standard Price on request