Abstract
Apolipoproteins, extracted from human serum high-density lipoproteins, can be resolved and recovered with high yield from a preparative MicroPak TSK Type 3000SW size-exclusion column using Tris-buffered 6 m urea or 6 m guanidinium chloride mobile phases. Adequate resolution of some apolipoprotein pairs is only achieved at low flow velocities and low sample loads, necessitating repetitive injections of small amounts of material for preparative isolation. An analytical high-performance liquid chromatograph equipped with a simplified sample introduction scheme and low-pressure switching valves for fraction collection was used to isolate milligram quantities of HDL apolipoproteins.
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