Variability of droxynivalenol measurements in barly.
FREESE, L., FRIEDRICH, R., KENDALL, D. and TANNER, S.
Journal of AOAC International 83: 1259-1263.
2000
บทคัดย่อ
In assaying barley for DON contamination, a study to measure the variability among measurement of different sample sizes found no detectable difference in variability attributable to sample size. It was concluded that the variability among DON concentrations in samples from the lot was small relative to that introduced by the measurement process (combined sample preparation and analysis). A separate experiment investigated variation among samples taker from a lot, variation among subsamples taken from ground samples, and variation among multiple replicated measurements of an extract. On 10 lots, all three sources were significant contributors to variation. Stratification of DON within lots was hypothesised as a source of variation of DON measurements. Tests indicated that some stratification might exist.