Page 241 - Applied Pharmacognosy
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2- Non diatomaceous supports
- polystyrene beads
-Teflon powder , rarely used (difficult to pack into a
column)
- Glass beads
B- Stationary Liquid
non volatile at operating temperature
1-Low melting solid 150 – 250 °C .
2- Liquid
*polar polyethylene glycol 100-180 °C. O(CH2CH2O)n
macrogol .
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