Variability associated with testing shelled corn for fumonisin.
WHITAKER, T.B., TRUCKSESS, M.W., JOHANSSON, A.S., GIESBRECHT, F.G., HAGLER, W.M. and BOWMAN, D.T.
Journal of AOAC International 81: 1162 – 1168.
1998
บทคัดย่อ
Variances associated with sampling, sample preparation and analytical steps of a test procedure that measures fumonisin in shelled corn were estimated. The variance associated with each step of the test procedure increases with fumonisin concentration. At 2 mg/kg, coefficients of variation associated with sampling (1.1 kg sample), sample preparation (Romer mill and 25 g subsample) and analysis are 16.6, 9.1 and 9.7%, respectively. The coefficient of variation associated with the total fumonisin test procedure was 45% and is about the same order of magnitude as that for measuring aflatoxin in shelld corn with a similar test procedure.