-
- Posts: 181
- Joined: Tue Oct 28, 2008 9:54 pm
- Location: usa
Does anyone have experience removing or otherwise dealing with impurities from ion pairing agents used in chromatography?
I'm using cetrimonium bromide (CTAB) with a C18 column. As organic composition increases, several impurities elute. The impurities in CTAB accumulate onto the column from the mobile phase at high aqueous composition and appear as peaks as organic composition increases.
I'm purchasing the highest purity CTAB I could find but I don't know how pure it will be.
Thanks,
Analytical Chemist and Adventurer
Venture Industries
Spider-Skull Island