Isolation of Thymosin α1from Thymosin Fraction 5 by High Performance Liquid Chromatography

Abstract
An HPLC [high performance liquid chromatography] system for quickly isolating individual peptides from [calf] thymus extract is described. A series of reversed phase separations followed by ion-exchange HPLC produces pure peptides with minimal chromatographic time. A 2.4 g column load of crude extract was carried through to the isolation of 4 mg of pure thymosin .alpha.1 within 6-8 h of chromatography.