含黏合剂的颗粒饲料中红霉素检测方法的协作研究
Collaborative study of assay method for erythromycin in pelleted feeds containing binding agents.
作者信息
Winkler V W, Nyman M A
出版信息
J Assoc Off Anal Chem. 1977 Jan;60(1):176-8.
PMID:833094
Abstract
A modified method for analysis of erythromycin in feeds containing the pelleting adjuvants bentonite and Masonex has been evaluated by collaborative study. Erythromycin is freed from the binding action of these adjuvants by an aqueous methanolic pH 8 buffer presoak before extraction with methylal. The recovery values for mash and pellets of 6 different sample types range from 86.6 to 103.0% of theory with a grand mean of 96.8%. This modification has been adopted as official first action.
摘要
通过协作研究评估了一种改进的方法，用于分析含有造粒助剂膨润土和马索内克斯的饲料中的红霉素。在用甲缩醛萃取之前，先用pH 8的甲醇水溶液缓冲液预浸泡，使红霉素从这些助剂的结合作用中释放出来。6种不同样品类型的粉料和颗粒料的回收率在理论值的86.6%至103.0%之间，总平均值为96.8%。此修改已被采用为官方首次行动。
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