EPA Method 353.2 Nitrate & Nitrite Back Catalog number: 52120 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0684.29-100-IO (24R)-24-Ethylcholest-8(14)-ene, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 108881-85-2 Price on request 679809 Sulfadimethoxine, 100 µg/ml, Methanol, 1ml Price on request 79400 Butyric acid Price on request