Doug,

Even though the Spectra-tech cards are more expensive, I would go with
those.  Actually, I think other card makers also raised their prices...of
the few makers that are out there.  The spectra-tech ones come closest to
the 3M cards.

There are also cards that have a metallic wire mesh...but they don't work
too well.

Hans Shin
Pacific Testing Laboratories


-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of
[log in to unmask]
Sent: Thursday, November 29, 2001 8:51 AM
To: [log in to unmask]
Subject: [TN] FTIR Cards


I have a question for the chemists in the crowd.  3M used to make
disposable cards for FT-IR analysis with polyethylene or PTFE meshes to
hold liquid samples.  VWR tells me that 3M no longer makes such a product
and I can't seem to find them anywhere else.  A company called Spectra-tech
makes something similar, but much more expensive.  Does anyone know if
there are other manufacturers of these products?  I could go to a
demountable liquid cell, but there would be lots of time rinsing cells
between analyses and I have a bunch to go through.  Any help would be
appreciated.

Doug Pauls
Rockwell Collins

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