EPA Method 8330 Analytes Back Catalog number: 93466 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3695.44-20-05ME Okadaic acid, 17.7µM, Solvent-methanol, Unit 0.5mL, # of units-1, Cas.no. Price on request 72323 2-Ethylthiophene Price on request 31102 EPA Method 551.1 Surrogate Standard Price on request