We observed multi peaks for Catecholamines in the course of cation exchange chromatography.It means two or more peaks exuded from the column while only one subject was injected into the mobile phase.

• 发现了儿茶酚胺类物质在阳离子交换色谱过程中有“多峰现象”,即一种物质有两个或两个以上的色谱峰流出色谱柱。