From: mkinch$##$umsis.miami.edu
Date: Wed Nov 05 2003 - 14:19:23 EST
Hello everybody,
I was wondering if anyone had any experience or inventive
ideas for leaving behind a big, inorganic, heavy, nasty catalyst in organic
media. My (FW 3432) exclusively tungsten-oxygen catalyst (stable around 380 C)
has gummed up our GC-MS polar column after I'd tried to precipitate it with
water inside the acetonitrile solvent I was using. Apparently, I didn't
precipitate all of it. I have to leave it behind as it is now inside the wool
and giving false positive oxidations for the sulfides (bp ~290) we are
testing. Thanks very much. Mark (bewildered grad student)
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