EPA Method 353.2 Nitrate & Nitrite Back Catalog number: 52120 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0143.18-500-IO 2-Phenyldibenzothiophene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 104353-07-3 Price on request 687066 N-Ethyldiethanolamine, 100mg Price on request 2698.19-100MG Noramitriptyline hydrochloride, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 894-71-3 Price on request