Page 242 - Applied Pharmacognosy
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*non polar
- hydrocarbons (paraffin oil)
- substituted poly siloxane (silicon gum ) ~ 350 °C.
polmeric liquid of high boiling point .
silicon polymer chemically bonded to inner wall of FSOT
CH3 R CH3
R= methyl or phenyl group H 3C S i O (S i O )n Si
CH3 R CH3
GLC column is chosen such that
*its polarity matches that of the sample
*Use least polar st. phase that provide satisfactory separation.
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