บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Sampling, sample preparation, and analytical variability associated with testing wheat for deoxynivalenol

Whitaker, T.B., Hagler, W.M., Giesbrecht, F.G. and Johansson, A.S.

Journal of AOAC International 83: 1285-1292.

2000

บทคัดย่อ

Sampling, sample preparation, and analytical variability associated with testing wheat for deoxynivalenol.

The variability associated with testing wheat for DON was measured using a 0.454 kg sample, Romer mill, 25g comminuted subsample and the Romer Fluoroquant analytical method. The total variability was partitioned into sampling, sample preparation, and analytical variability components. Each variance component was a function of the DON concentration and equations were developed to predict each variance component using regression techniques. For the test procedure, the corfficient of variation (CV) associated with testing wheat at 5 mg/kg was 13.4%. The CVs associated with sampling, sample preparation, and analysis were 6.3, 10.0 and 5.3%, respectively. The CVs associated with testing wheat are relatively small compared to the CV associated with testing other commodities for other mycotoxins.