Method 1613 Clean-up Standard, 8ng/ml in Nonane, 20ml Back Catalog number: EDF-6999-10X Availability: In the manufacturer's stock Price on request - + Recommended 31482 EPA Method 507 Nitrogen Phosphorus Pesticides Price on request 73528 3-Phenoxybenzoic acid Price on request 8715.9-100-IO Anilazine-d4 (ring-d4), 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1219802-20-6 Price on request