Hello everyone
Recently I run into pesticide problem. So I search for pesticide removal tech, and most of them I saw are slow.
Then I saw people using large glass column, with filler/filter, for pesticide removal. Anyone know the SOP for this glass column. I am getting this glass column later this month. What to figure out how to use it.
Any help will be very appreciated.
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Heres a start.
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Thank you very much.
Oh, this glass column is called “Chromatography Column”, first time to know.
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We can help 
What we need is good, affordable chinese columns!!!
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They’re marketing it as such but nothing makes this unique to chromatography. It is, however, large enough perform a number of purification methods on at least 300g at a time per column. How much are they trying to charge for this glassware?
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this is a really nice channel. Thx!!
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They are charging for $9500 per column. Is this too expensive?
I think you can find it for a few thousand cheaper – they’re really using “chromatography” to mark it up.
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that is true. I could find a glass blower to make it. It is just a straight pipe
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what is expensive is the sillica inside
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Iv got 5.5ft x 24" wide coulmns i use to rememove thc, iv got them built personally. i paid with stand 5000.00.
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My 6x48 can do 1.5 kg easy depending on the pesticide.
Not every pesticide is easy to do. Anyone done these with c-18 reverse phase?
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@Krative, this is essentially the equipment I was discussing. I think the actual picture I’d mentioned may have been @Thedistillator’s setup he’d posted in a thread somewhere on here.
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you using stainless spools?
Im probably gonna go ahead and get a bunch of 12" diameter spools and fill em up with adsorbents before running 10 kilos of crude through
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Me and @CBNight have been looking into the cost of c-18 reverse phase silica and the stuff is expensive. That is the real cost like @qma said.
Recently, ive been talking to a few companies trying to get my Silica Gel 60a price down. All of them carry c-18 but its so expensive its kinda scared us away from playing yet till we see some other member do it.
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No. Just standard research gravity column. I pick my pesticides carefully so I just run the easy ones or very low amounts of the others. A few Cat 1’s that concentrate in extracts are the most difficult things I’ll do.
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With a stainless steel column, could you use temperature to judge when different fractions elute?
TLC is the classic technique
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