Murthy G K, Peeler J T
J Assoc Off Anal Chem. 1986 Jul-Aug;69(4):658-9.
A collaborative study was conducted in which 2 different sample preparation techniques were used to determine alkaline phosphatase in casein by the rapid colorimetric test. Seven collaborators tested 10 unknown casein products containing different amounts of residual phosphatase. Results indicated that the phosphatase contents of casein prepared by the 2 methods were not significantly different. The collaborators correctly analyzed 100% of the test samples that were ground and 98% of the test samples that were unground. The alternative rapid sample preparation method has been adopted official first action.
开展了一项合作研究，其中使用两种不同的样品制备技术，通过快速比色法测定酪蛋白中的碱性磷酸酶。七名合作者测试了10种含有不同残留磷酸酶量的未知酪蛋白产品。结果表明，用这两种方法制备的酪蛋白的磷酸酶含量没有显著差异。合作者对研磨后的测试样品的正确分析率为100%，对未研磨的测试样品的正确分析率为98%。替代快速样品制备方法已被官方首次采用。
