benzyme said:I could see the reasoning behind using a soxhlet for the extraction of polyphenols/phenolic compounds, but there's no advantage to using one for the extraction of alkaloids. lyse, acid-base chemistry.
benzyme said:or get a gregar extractor.
benzyme said:nice. how much?
the cheapest i've seen is ~$549 , and that doesn't include the aux. condenser.

benzyme said:a sonicator?
that bad boy will reduce extraction times 9-fold, at least.
i prefer to use that over the soxhlet, no question.
sonicate a dilute acidic sol'n, vac filter, basify, extract, and rotavap. all that can be accomplished within an hour.
fabio88ct said:hey guys what do you think about the ethanol extraction of alkoloids with a soxhlet? it's a good tek? Do you suggest any solvent instead of ethanol? acetone probably?
1ce said:fabio88ct said:hey guys what do you think about the ethanol extraction of alkoloids with a soxhlet? it's a good tek? Do you suggest any solvent instead of ethanol? acetone probably?
Keep in mind you are trying to dissolve acidic alkaloids. Not every solvent will play the part. It *will* work, but other methods work better.
benzyme said:yes.