title: Semiautomated method for niacin and niacinamide in food products: collaborative study.
abstract: A collaborative study was conducted comparing a semiautomated colorimetric niacin method with a manual colorimetric and a microbiological method for 10 food products. Seven laboratories used the microbiological method, 7 laboratories used the manual colorimetric method, and 6 laboratories used the semiautomated method. The semiautomated method was more repeatable within a laboratory and more reproducible between laboratories than was either of the other methods. The semiautomated method results compared favorably with both the microbiological and manual colorimetric method results.
mesh_terms: D001322:Autoanalysis / Q000379:methods; D005504:Food Analysis; D009536:Niacinamide / Q000032:analysis*; D009539:Nicotinic Acids / Q000032:analysis*
chemical_list: D009539:Nicotinic Acids; D009536:Niacinamide