title: Comparison of two radioisotope dilution assay kits for measuring vitamin B12 in gruel.
abstract: The results obtained using two commercially available radioisotope dilution (RID) assay kits for determining vitamin B12 were compared. Comparison of the results obtained with the two RID methods gave a correlation coefficient of 0.9390 for gruel samples. The results obtained with one of the kits were slightly lower, probably due to a difference in the RID assay techniques.
authors.affiliation: National Food Administration, Uppsala, Sweden.
authors.forename: B G
authors.initials: BG
authors.lastname: Osterdahl
authors.forename: E
authors.initials: E
authors.lastname: Johansson
mesh_terms: D002523:Edible Grain / Q000032:analysis*; D005504:Food Analysis / Q000379:methods*; D011865:Radioisotope Dilution Technique; D011933:Reagent Kits, Diagnostic; D014805:Vitamin B 12 / Q000032:analysis*
chemical_list: D011933:Reagent Kits, Diagnostic; D014805:Vitamin B 12