Im guessing you’re after a full fledged chomotography solution rather than just empty columns so you can build a solution around whatever random column you can find.
I’m sure you need to be more specific about your needs to make this work for you.
Do you have chemist?
You might should get one of those, and have them spec the columns and accoutrements.
@MagisterChemist might have time for a consult on the subject.
If you’re looking to hear about other methods for THC remediation, posting that question outside of the classifieds after pursuing some of the other threads on the subject will serve you well.
Slightly off topic, but tri-clamp spools look a lot like chromatography columns to me (I’ve done a fair amount, none in this industry).
Pretty sure one skilled in the art could repurpose a Craigslist hydrocarbon extractor for the task if they understood the problem. Would need to pick up some sintered disks and filter plates in 3” or 4” from @Killa12345
You could move your solvent with nitrogen, optionally using the Craigslist recovery pump to reuse it.
Edit: if in fact you are or have a chemist that could perform the above shenanagins I apologize and point out that somebody will almost certainly find my response useful.