eugeneoregon
Active Member
I am almost certain this set up is unique lolz. It looks odd but works great as a vacuum flash chromatography rig!This is my rig made up for standard vacuum flash chromatography. It is useful for gram sized analysis and refinement and is not nearly as efficient as DCVC but has its own advantages insofar as analysis goes. The fun thing was taking existing stuff I had and piecing it all together. I ran about a gram here and after solvent purge then judging by the effect after I vaped it and the near abscence of taste then it is indeed nearly pure thc. I definately do need to adjust my solvent strategy as I am learning that 420 extract has a unique difficulty in seperation owing to the wide range of polarities exhibited by the compounds present.
Chromatography is a lot of fun and the reward is highly purified medicine. Recovery off of silica gel is 95% nominal. Photos shown here depict a solvent gradient from hexane 100% to ethyl acetate 100% in 20% increments followed by a column flushing methanol for the stubborn (and non cannabinoid) polar compounds present. Polar compounds eluted with methanol weigh less than 1% of total weight of beginning extract. Solvents are purged by repeat cycles of heat and stirring followed immediately by high vacuum. Solvent removal comfirmed under high power microscope which will reveal bubbles under magnification after solvent is heated very hot. Purge continues until no evidence under magnification of solvents are present (no more bubbles when high vacuum is pulled on hot extract).
