EPA Method 353.2 Nitrate & Nitrite Back Catalog number: 52120 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10729.20-K-ME (+)-(S)-Chlorpheniramine maleate,1000 µg base/mL,MeOH,1mL, Price on request 676197 Foramsulfuron, 10.0 µg/ml, Acetonitrile, 10ml Price on request 0201.18-500-T Benz[a]anthracene, 500 µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 56-55-3 Price on request