请画出MicroSpin S-400 HR spin columns的工作原理,如何分离不同大小的物质

CLiu 发表于 2024-3-27 20:17:14 | 显示全部楼层 |阅读模式
[size=1.125]MicroSpin S-400 HR spin columns rely on gel filtration fo 80S ribosome clean-up. Good product yield and purity are obtained with sample volumes from 25-100 µL, and from nanogram to milligram quantities of 80S ribosome.
[size=1.125]S-400 HR spin columns contain Sephacryl resin of differing pore sizes. They allow 80S ribosome purification by the process of gel filtration. Molecules larger than the largest pores in the Sephacryl are excluded from the gel and elute first. Intermediate size molecules penetrate the matrix to varying extents, depending on their size and the resin used. Penetration of the matrix retards progress through the spin column; very small molecules elute last. The volume required to elute these small molecules is dependent on the volume available both inside and outside the pores i.e. the bed volume.


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