Column packings:

The packing of columns in liquid chromatography are described in terms of adsorbent or stationary phase, the categories of particle and particle size. Every of these particle features has a significant effect on the performance and use of a given packing material. The columns are packed through several methods such as:

• Dry packing of rigid solid material by using "tap-fill" process.
• Slurry packing method for columns of hard gel.
• Slurry sedimentation techniques for soft gels.