Hasselberger M L
Nebraska Department of Agriculture Laboratory, Lincoln 68502.
J Assoc Off Anal Chem. 1991 Sep-Oct;74(5):790-2.
Results are compared for the microbiological analysis of chlortetracycline using the AOAC method and a modified method applicable to potencies above 50 g/ton. Two modifications are presented: substitution of a pH range of 4.0-4.5 instead of the specified pH of 4.5 for the plating solution, and substitution of extraction by shaking instead of the blending procedure. There were no significant differences in results between the AOAC method and the modified method.
使用美国官方分析化学师协会（AOAC）方法和一种适用于含量高于50克/吨的改良方法对金霉素进行微生物分析，并对结果进行了比较。提出了两项改进：将平板计数琼脂溶液的pH范围由规定的4.5替换为4.0 - 4.5，以及将混合程序替换为振荡萃取。AOAC方法和改良方法的结果之间没有显著差异。
