EPA Method 8310 Surrogate Standard Back Catalog number: 94123 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678984 Atrazine-2-hydroxy, 100 µg/ml, Methanol, 1ml Price on request XA18000034AL Pesticide-Mix 34 100 µg/mL in Acetonitrile, 1ml Price on request 9839.19-25MG Phenylbutazone,neat,neat,25mg Price on request