Total Kjeldahl Nitrogen as N Back Catalog number: 50794 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2354.8-100-ME Tetraethylammonium bromide, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 71-91-0 Price on request 79770 Diazinon, 1000µg/ml in Acetonitrile, 1ml Price on request 678428 Heptachlor endo-epoxide, 100µg/ml, Acetonitrile, 5ml Price on request