Re: [?? Probable Spam] Cleaning 2.5 SSNMR rotors

From: Ulrich Haunz (Ulrich.Haunz@uni-konstanz.de)
Date: Wed Nov 14 2007 - 06:28:26 PST


Hello,

I have got a different idea to solve this problem. Someone of the MPI
Mainz showed us,
to remove molted polymer from a solid state rotor very easily. He opened
the cap and
put a steel needle into the polymer. Then he cooled the rotor with the
polymer with
liquid nitrogen and the put it off the polymer like a cork of a bottle.
No heating treatment
was recommended.
I'll hope this can help you a little bit.

Yours

Ulrich Haunz
> I've been having difficulty removing residual amounts of polymer from my
> 2.5 mm solid state rotors. Does anyone know if these can be exposed to
> high temperatures to burn off whatever is left inside? What is the
> temperature limit for the material that makes up the rotor?
>
> Thanks
> Vernon Russell
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