Abstract
The separation and retention behaviour of some aliphatic amines in ligand-exchange liquid chromatography has been studied using copper(II)-modified bonded silica gels as the stationary phase. Hexane containing ammonia and methanol as the mobile phase showed good efficiency for separating sample amines. Ammonia has been found to be very effective for improving both the separation and the peak shape. Sample selectivity and the effect of additives in the mobile phase are discussed.
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