Total Kjeldahl Nitrogen as N Back Catalog number: 50794 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8216.12-K-AN Pivaldehyde-PFOA derivative, 1000µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. Price on request 675399 Fenoprop, 100 µg/ml, Acetonitrile, 5ml Price on request 50587 pH 12.0 Standard @ 25°C Price on request