Davis E J
J Assoc Off Anal Chem. 1979 May;62(3):621-3.
The official final action method, 42.028--42.032, for determining amprolium in feeds was modified by a change in the preparation of aluminum oxide for chromatography. A premix containing 0.5% amprolium was collaboratively studied by the modified and the official methods. Compared with the modified method, 87.7% of the drug was recovered from the premix by using the official method. The modification makes possible the assay of premixes as well as finished feeds. The official final action method has been modified to incorporate this change.
用于测定饲料中氨丙啉的官方最终方法（42.028 - 42.032）因用于色谱分析的氧化铝制备方法的改变而被修改。采用修改后的方法和官方方法对一种含0.5%氨丙啉的预混料进行了协同研究。与修改后的方法相比，采用官方方法从预混料中回收的药物为87.7%。这种修改使预混料以及成品饲料的测定成为可能。官方最终方法已作修改以纳入这一变化。
