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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