EPA Method 625 Base/Neutrals Mix #4 Back Catalog number: 19317 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended Y0000787 Caffeine for system suitability, 10mg Price on request L10580000AL Bifenox, 10µg/mL in Acetonitrile, 10ml Price on request 3625.34-25-AN U{13C34}-Fumonisin B1, 25µg/mL, Solvent-acetonitrile, Unit 1.2mL, # of units-1, Cas.no. Price on request