Nitrite (NO2-) as N Back Catalog number: 50626 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1943.6-10ML 1,1,1,3,3,3-Hexamethyldisilazane, neat, Solvent-neat, Unit 10mL, # of units-1, Cas.no. 999-97-3 Price on request 2514.7-100MG 4-Hydroxybenzoic acid, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 99-96-7 Price on request S-4140-50-IO Nitrogen Calibration Set-Low Boiling Solvents Units: 1x1mL ampoules or 10mL screw-capped bottle Nitrogen introduced using Pyridine Catalogue No. Concentration Matrix: isooctane mg/kg (ppm) S-4140-0 Blank S-4140-03 0.3 Price on request