try Michrom BioResources, (530)-8886498, Macro-Trap column (3 mm i.d. x 8=
mm, 50
=B5l bed volume) available in several chromatographic flavour, and LC Pac=
kings,
(800) 621-2625, packed =B5-precolumn (1 mm i.d. x 15 mm, 12 =B5l bed volu=
me)
available in many reverse-phase and "normal" chromatography packings and =
custom.
These formats are nice since you can operate them with regular HPLC pumps=
(both
companies also manufacture much smaller cartridges, if you are interested=
to
look at smaller sizes). They also have short columns (50 mm) available in=
0.1,
0.2, 0.5, 0.8 and 1 mm i.d. that might also meet the criteria of your col=
league.
The choice is yours!
Good luck,
Axel
lisa bibbs wrote:
> Can any of you help me with this one?
>
> >X-Sender: mathison@gcrc.scripps.edu
> >Date: Tue, 20 Jul 1999 07:11:33 -0700
> >To: bibbs@scripps.edu
> >From: John Mathison <mathison@scripps.edu>
> >Subject: Got microcolumns?
> >Mime-Version: 1.0
> >
> >7/20/99
> >
> >Hi Lisa,
> >
> > I need to do some microchromatography.... i.e. bed sizes of 50-=
100
> >ul or
> >so. If the minimum accepable bed height were 2 or 3 mm, then the colu=
mn
> >diameter would need to be on the order of 2.5 mm (no matter how you sl=
ice
> >the pi). I can imagine such a beast with witty bitty flow adapters an=
d
> >frits, but where could you buy it?
> >
> >John Mathison
> >4-8547
> >
-- -----------------------------------------------------------------------= ---------Axel Ducret, Ph.D. Senior Research Biologist Merck-Frosst Canada Inc. Dept. Biochemistry and Molecular Biology P.O. Box 1005 Pointe-Claire-Dorval PQ H9R 4P8 Canada
tel. + (514) 428-3428 fax + (514) 428-4900