By Anonymous on Monday, April 8, 2002 - 06:31 am:
I'm looking for a column which will separate hexafluoropropene from hexafluoropropylene oxide under ambient temperatures. Any thoughts? I've tried a PoraplotQ and DB-1 without success. I am currently using a 5890 series 2 GC and 5971 MSD. Any help would be appreciated.
Andy
By Anonymous on Monday, April 8, 2002 - 12:58 pm:
Andy,
Quite a protected oxide you have there. Depending which is in greater abundance, I would try something polar, a trifluoropropyl methyl silicone capillary (keto electron pairs), or a Supelcowax, (dipole interaction).
Good luck.
By Anonymous on Thursday, April 11, 2002 - 05:04 am:
Thanks for your advice. I tried a HP INNOWAX and a DB-FFAP (didn't have the columns which you had suggested). Still no luck. I did manage to get reasonable separation (Rs=1.4)using a 60m ASTEC GasPro (are they now made by J&W/Agilent?)starting at 50oC. Thanks anyway for your assistance.
Andy
By Anonymous on Thursday, April 11, 2002 - 08:09 am:
A cyclodextrin type column might be your only hope in this case. If you are wanting to control a process a spectroscopic method might be best.
Which? A, B, or C cyclodextrin? Derivatized or non-derivatized? It would be fun to find out.
Check retailers web site for applications.
If raw material QA is your desire then a wet chemical method might suffice.
Good luck. Same anonymous as before.
By Jason Ellis on Tuesday, April 16, 2002 - 08:14 am:
GasPro is manufactured by J&W/Agilent.
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