Site pages
Current course
Participants
General
Topic 1
Topic 2
Topic 3
Topic 4
Topic 5
Topic 6
Topic 7
Topic 8
Topic 9
Topic 10
Topic 11
Topic 12
Topic 13
Topic 14
Topic 15
Topic 16
Topic 17
Topic 18
Topic 19
Topic 20
Topic 21
Topic 22
Topic 23
Topic 24
Topic 25
Topic 26
2.6.3.4. Stationery phase
A non-polar column is better for separation of non-polar compounds and a polar column is better for the separation of polar compounds. The polarity of the stationary phase is determined by the structure of the polymer, which constitutes the stationary phase. The two important stationery phases are
These stationery phase materials melt at high column temperature and become liquid films on the porous support materials. Stationery phase of the non-polar column is polydimethylene-siloxane. and that of the polar column is polyethylene glycol. |
Last modified: Friday, 9 December 2011, 10:27 AM