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作者提出用微型柱层色层法快速筛选全乳中黄曲霉毒素M_1,每次试验只需8～10分钟。检测极限约为0.2μg/kg。此法可节省费用和时间,便于现场使用。微柱制备:取180mm×5.5mm内径的玻璃管,自下而上按次装入5mm滤纸浆填料(Schleicher和Schuell No.289纸浆),19～21mm 100～200目弗罗里矽,19～21mm无水硫酸钠,19～21 mm 70～200目中性氧化铝(加有8%水,将水加入1级活性的氧化铝中,充分混合并将团块粉碎,在密闭容器中放置以防水
The authors proposed a rapid screening of aflatoxins M 1 in whole milk by micro-column chromatography, with each experiment taking only 8 to 10 minutes. Detection limit of about 0.2μg / kg. This method can save costs and time, easy to use on-site. Microcolumn preparation: Take a glass tube with an inner diameter of 180mm × 5.5mm, load a 5-mm filter pulp filler (Schleicher and Schuell No. 289 pulp) from bottom to top, 19-21mm 100-100 mesh Florisil, 21mm anhydrous sodium sulfate, 19 ~ 21 mm 70 ~ 200 mesh neutral alumina (add 8% water, the water is added to a grade of active alumina, mixed thoroughly and crushed the lumps, placed in a sealed container waterproof