[RASMB] Velocity cells: loose keyway, new purchases

[Michael Bovee]

Hi all,
A couple issues (gripes) -

1) a coworker (not subscribed to RASMB) has a cell housing with a 
loose keyway guide pin. Do we live with it, glue it in somehow, or 
just be careful not to wash it down the drain?

2) I'm buying two (or maybe three) cells with sapphire windows for 
sed velocity. Feeling the burn of beckman's prices and difficulty 
getting information from them, but also what's the deal with epon 
centerpieces described as max speed of only 44K?  I have been using 
them all the time at 50K.  I always match precisely the menisci, but 
should I be concerned?

--Michael
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Michael L. Bovee, Ph.D.
Research Assistant
University of Vermont
Department of Biochemistry
B403 Given Building
89 Beaumont Av.
Burlington, VT  05405-0068
email: mbovee at zoo.uvm.edu
http://biochem.uvm.edu
http://www.uvm.edu/~mbovee
Lab   802-656-0345
FAX  802-862-8229
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