【摘要】 本法先使血浆中的脂蛋白快速富集浓缩，再将脂蛋白各组份分离纯化。即具备序列漂浮法分离样品量大的长处，又具有密度梯度法离心时间短的优点。使用ＢＥＣＫＭＡＮＬ８－８０Ｍ型超速离心机，Ｔｙｐｅ７０Ｔｉ转头，分离２８０ｍｌ血浆只需超速离心５ｈ。所得极低密度脂蛋白（ＶＬＤＬ）及低密度脂蛋白（ＬＤＬ）经琼脂糖电泳、聚丙烯酰胺电泳（ＰＡＧＥ）及载脂蛋白ＳＤＳ－聚丙烯酰胺电泳（ＳＤＳ－ＰＡＧＥ）鉴定纯度良好。本文为超速离心分离制备大量血浆ＶＬＤＬ、ＬＤＬ提供了一种快速、经济的新方法。更多还原

【Abstract】 A rapid method to obtain large amount of VLDL and LDL by ultracentrifugation is described.This method combines the advantages of both sequential flotation ultracentrifugation and density gradient ultracentrifugation.It can process a large volume of plasma in a short time.The purity of isolated VLDL and LDL was confirmed by the lipoprotein electrophoresis on agarose gel and PAGE and by the apolipoprotein electrophoresis on SDS-PAGE.This rapid,economical method is of great value in practical application.更多还原