Total Kjeldahl Nitrogen as N Back Catalog number: 50794 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 679166 13C,15N2-Nitrofurazone, 10mg Price on request 1650.11-100-IO 1,1,1,3,10,11-Hexachloroundecane, 100µg/mLin Isooctane, 1ml Price on request L20011800IO PCB No. 118, 10µg/mL in Isooctane, 10ml Price on request