title: Method for preparing NAD labeled with  3 H of high specific radioactivity in the 4-nicotinamide position.
mesh_terms: D000469:Alkaline Phosphatase; D055598:Chemical Phenomena; D002621:Chemistry; D002848:Chromatography, DEAE-Cellulose; D005954:Glucosephosphate Dehydrogenase; D006593:Hexokinase; D007553:Isotope Labeling; D007770:L-Lactate Dehydrogenase; D008722:Methods; D009243:NAD / Q000302:isolation & purification; D009249:NADP; D009536:Niacinamide; D010084:Oxidation-Reduction; D013997:Time Factors; D014316:Tritium
chemical_list: D009243:NAD; D014316:Tritium; D009536:Niacinamide; D009249:NADP; D007770:L-Lactate Dehydrogenase; D005954:Glucosephosphate Dehydrogenase; D006593:Hexokinase; D000469:Alkaline Phosphatase