快速简便地测定牛奶中低至万亿分之一水平的黄曲霉毒素M1。
Rapid and simple determination of aflatoxin M1 in milk in the low parts per 10(12) range.
作者信息
Gauch R, Leuenberger U, Baumgartner E
出版信息
J Chromatogr. 1979 Oct 31;178(2):543-9. doi: 10.1016/s0021-9673(00)92513-5.
PMID:528660
Abstract
A method for extracting aflatoxin M1 from milk is proposed in which the use of disposable Extrelut clean-up columns simplifies the analysis considerably in comparison with existing methods. The quantitative determination is based on one-dimensional thin-layer chromatography and fluorescence densitometric measurement. The detection limit is 5 ppt (parts per 10(12)) in milk and the recovery is 78 +/- 4% at a level of 50 ppt.
摘要
提出了一种从牛奶中提取黄曲霉毒素M1的方法，与现有方法相比，使用一次性Extrelut净化柱可大大简化分析过程。定量测定基于一维薄层色谱法和荧光密度测量法。牛奶中的检测限为5 ppt（每10¹²份中的份数），在50 ppt水平下回收率为78±4%。
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