Radioisotope dilution determination of vitamin B12 in dietary supplements.
A rapid and sensitive method for the determination of vitamin B12 in dietary supplements has been developed using a commercially available radioisotope dilution (RID) kit. The vitamin B12 was isolated by enzymatic extraction.
Osterdahl
B G
BG
National Food Administration, Uppsala, Sweden.
Johansson
E
E
D005504:Food Analysis / Q000379:methods*; D005526:Food, Formulated / Q000032:analysis*; D011865:Radioisotope Dilution Technique; D011933:Reagent Kits, Diagnostic; D014805:Vitamin B 12 / Q000032:analysis*
D011933:Reagent Kits, Diagnostic; D014805:Vitamin B 12