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lipeijun2010

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[求助] 寡糖分离方法探讨

目前开展寡糖分离检测项目,分子量范围是4K以下,但是对其分离手段不知用什么方法。主要是以下几点:
       (1)超滤离心的效果如何,其中型号3k,10k等能够与糖类物质的分子量匹配吗。
       (2)DEAE-sepharsoe CL-6B,DEAE-cellose 有什么区别(有的文献里面先用DEAE-cellose,后用DEAE-sepharsoe CL-6B)
       (3)另外脱盐采用Sephadex G-10 方法如何,如何检测洗脱峰,苯酚硫酸法如何?
       (4)柱层析后浓缩方法,采用冷冻干燥还是旋转蒸发?
         以上几问或许有些业余,但是诚恳希望得到帮助。
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