EPA Method 508 - Performance Check Solution Back Catalog number: 19132 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 682049 Fumonisin B2, 50 µg/ml, Acetonitrile/Water, 1ml Price on request 57015 Phosphorus (P) Price on request 73308 Methyl 11-cis-octadecenoate (C18:1n-7) Price on request