Total Kjeldahl Nitrogen as (N) Back Catalog number: 50251 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 50684 Custom Metals Standard Price on request 70175 Ethoprop, 1000µg/ml in MeOH, 1ml Price on request S-4142-1-IO Low level Nitrogen Calibration Units: 1x1mL ampoules or 10mL screwcapped bottle Nitrogen introduced using Aniline Catalogue No. Concentration Matrix: isooctane mg/kg (ppm) S-4142-0 Blank S-4142-05 0.5 S-4142-1 Price on request