| 看文献测定毒素用的液质，但是写了一句four serial octadesyl silica columns，4个连续的柱子，这是什么作用？增加保留时间？太夸张了吧？不太懂，请高手指点，一下是原文节选： trichothecenes were quantified by liquid chromatography-mass spectrometry (Model ZQ Quattro Micro, Waters, Milford, MA) with an octadesyl silica column and the mobile phase of acetonitrile/10 mM ammonia acetate water/methanol (5:90:5) for DON or NIV and with four serial octadesyl silica columns and acetonitrile/10 mM ammonia acetate water (25:75) for 3ADON or 15ADON. |
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