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Packed GC Columns
Posted: Wed Apr 12, 2006 1:39 pm
by tbd694
I am looking for a packed column that would separate ethylene & propylene glycols using a TC detector. Does anyone have any experience
with this analysis? Thanks
packed column
Posted: Wed Apr 12, 2006 4:41 pm
by chromatographer1
a 3% Carbowax 20M on Porapak P 80/100 in a 2 or 4 mm ID glass or a fused silica coated SS 1/8inch column, 4 to 8 feet in length should suffice.
alternately, I have used a 3% Carbowax 20M on Supelcoport in a glass or fused silica lined SS 1/8inch column.
I would contact Supelco Technical Service for further advice.
800-359-3041
techservice@sial.com
best wishes,
Rod
Posted: Wed Apr 12, 2006 5:43 pm
by Consumer Products Guy
I'd try Tenax-TA packed column.
Tenax
Posted: Wed Apr 12, 2006 6:56 pm
by chromatographer1
I agree with CPG in that column would be a good column to try. Remember to keep your injector temperature above ~150°C and if your sample is in water not too inject more than a microliter unless a slow injection procedure is used.
best wishes,
Rod
Posted: Thu Apr 13, 2006 3:56 pm
by tbd694
Thanks for the advice................