Re: ORGLIST: hand-made combines and distillators

From: Jacob Zabicky (zabicky$##$bgumail.bgu.ac.il)
Date: Wed Jan 19 2000 - 05:04:19 EST

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Hello Ilfir,

Two low-budget suggestions,

1) Use a GC with an ordinary column that gives a good separation and TCD,
make as big injections as you can, collecting your fractions from the
discharge port when you see them coming in the detector signals. In a few
hours you may finish the separation of many 50-100 microliter injections.

2) Build a poor-man molecular still, where the vessel containing your
sample is immersed in a constant temp. warm bath, say 40-50 C. At the top
of the still you should have a cold finger with a collection ampoule. Apply
a vacuum in the sub-torr range, and stop the operation every few hours to
collect in capillaries or other convenient containers whatever came off.

Good luck.

Jacob

>>Dear Orglist members,
>>
>>Has anyone a experience to distillate (and separate) under vacuum
>>small quantities (0.5-2.0 ml) of liquid organic compounds. Yes, there
>>are many special columns but I haven't ones. I am interested in
>>hand-made apparatus without fine work. I'd like to hear your opinion.
>>
>>Best regards,
>>Ilfir R. Ramazanov, Ph.D.,
>>Laboratory of Catalytic Synthesis,
>>Institute of Petrochemistry and Catalysis,
>>pr. Oktyabrya, 141,
>>Ufa, 450075, Russia.
>>
>>mailto:elf$##$anrb.ru
>>
>>Visit my homepage and find some QC software
>>http://members.tripod.com/~ChemELF
>>
>>Visit our lab web page
>>http://organomet.cjb.net
>>
>>18.01.00 15:18
>

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Prof. Jacob Zabicky Tel. 972-7-6461271/6461062/6472754
Institutes for Applied Research Fax. 972-7-6472969
Ben-Gurion University of the Negev Private: POB 12366, Beer-Sheva 84863
POB 653, Beer-Sheva 84105, ISRAEL Tel. 972-7-6496792
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• Next message: Jonas Nilsson: "ORGLIST: Varian->Bruker"
• Previous message: Jacob Zabicky: "Re: ORGLIST: Synthesis of amidines..."
• Maybe in reply to: Ilfir R. Ramazanov: "ORGLIST: hand-made combines and distillators"
• Next in thread: Jonas Nilsson: "ORGLIST: Varian->Bruker"
• Reply: Jonas Nilsson: "ORGLIST: Varian->Bruker"

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