EPA Method 353.2 Nitrate + Nitrite Back Catalog number: 53120 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 673408 Phenthoate, 10.0 µg/ml, Acetonitrile, 10ml Price on request 684354 13C3-Atrazine-desethyl-desisopropyl, 100 µg/ml, M Price on request 673076 Folic acid, 250mg Price on request