Malanoski A J
U.S. Department of Agriculture, Food Safety and Inspection Service, Washington, DC 20250.
J Assoc Off Anal Chem. 1990 May-Jun;73(3):411-4.
The diagnostic evaluation of the crude protein collaborative study identified possible problems with a standardized interval for the Kjeldahl digestion, with sample preparation, and with excess sample weights. The standard deviations for the ham and the beef samples cannot be considered to be representative of the method because of these problems. The standard deviations for the frankfurter and the pork sausage samples for all analysts met the performance standard of 0.24. There was no evidence of analyst bias.
粗蛋白协作研究的诊断评估发现，凯氏定氮消化的标准化时间间隔、样品制备以及样品重量过多可能存在问题。由于这些问题，火腿和牛肉样品的标准差不能被视为该方法的代表性数据。所有分析人员对法兰克福香肠和猪肉香肠样品的标准差均达到了0.24的性能标准。没有分析人员偏差的证据。
