EPA Method 353.2 Nitrate & Nitrite Back Catalog number: 52120 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 50679 L(+)Lactic acid (C3H6O3) Price on request 689731 Metribuzin-desamino, 100µg/ml in Acetonitrile, 5ml Price on request 79393 MCPB methyl derivative Price on request