Page 164 - Applied Pharmacognosy
P. 164

What is inside the column-The stationary phase

                      Column Packings in HPLC

❑ Packings for HPLC columns are very fine with particle size 3-10
   µm; these can be classified according to the following criteria:
     ➢ Rigid solids or gels.
     ➢ Spherical or irregular.
     ➢ Porous or superficially porous.
     ➢ End-capped packings or not.

❑ The HPLC column is usually           163
   packed with small adsorbent
   particles, preferably spherical in
   shape.
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