Total Kjeldahl Nitrogen as N Back Catalog number: 50794 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 59395 Metals Mix #1 Price on request 9706.6-100-ME 5-Hydroxymethylfurfural , 100µg/mL, Solvent-, Unit 1mL, # of units-1, Cas.no. 67-47-0 Price on request 8851.9-K-IO 3-sec-Butyl-2-methoxypyrazine, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no. Price on request