Total Kjeldahl Nitrogen as (N) Back Catalog number: 50251 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 34054 EPA Method 552.1 - Haloacetic Acids Price on request M4-B-2378-CDF 4-Bromo-2,3,7,8-tetrachloro[13C12]dibenzofuran, 1.2ml x 50ug/ml, toluene Price on request 678496 Pyrifenox, 100 µg/ml, Acetonitrile, 1ml Price on request