title: Thin layer chromatographic determination of aflatoxin B1 in eggs: collaborative study.
abstract: The thin layer chromatographic method of Trucksess et al. for aflatoxin B1 in eggs was collaboratively studied. Each collaborator analyzed 3 known practice samples and 9 unknown samples containing added aflatoxin B1 at 0, 0.05, 0.10, and 0.30 ng/g. For 9 collaborators, recoveries for the 3 positive levels were: 0--0.13 ng/g (average 98%, coefficient of variation (C.V.) 83%), 0.05--0.18 ng/g (average 102%, C.V. 36%, and 0.11--0.42 ng/g (average 93%, C.V. 31%), respectively. The method has been adopted as official first action.
mesh_terms: D000348:Aflatoxins / Q000032:analysis*; D000818:Animals; D002645:Chickens; D002855:Chromatography, Thin Layer / Q000379:methods; D004531:Eggs / Q000032:analysis*
chemical_list: D000348:Aflatoxins