In a manner that you wouldn’t consider chromatography?
Is that in a manner you are able/willing to share?
I’ve certainly seen THCA that was deliberately isolated in an Eden or Apeks machine once upon a time (someone bought the separator yo one of the first rec celebration events in WA).
The yields made it sound like a parlor trick, but that was long ago and there were dabs available (not if the THCA isolate 
). I know we’ve come along way since then, or even since the last time I looked at CO2 extraction options: Ennie meeny miny moe: CO2 or BHO?