1,The purpose for aging column is to completely remove the residual solvents in the filler and some volatile substances; and also to promote the fixative evenly distributed in the bear firmly on the surface of the body.

2 methods: the column used at room temperature can be directly installed in the chromatograph, connected to the carrier gas, and can be used when the baseline is stable; if the column is used on high temperature operating conditions, it needs to connect to the carrier gas for a few hours or even a longer time when the operating temperature is much higher in order to completely make volatile substances out of the fixative. And when the baseline is smooth, the column can be used immediately.