I think the issue with propane at at least some light sources is that it
is flammable. Makes shipping and safety more complicated.
How hard would it be to let the propane melt off in a cryo gas stream at
your home lab? Then use tongs to transfer the pin into liquid N2 for
handling as usual? If you don't have a working N2 gas stream and are on
a budget they are not that hard to build:
https://doi.org/10.1107/S0021889894006357
Cheers,
-James Holton
MAD Scientist
On 1/26/2022 9:25 AM, Guenter Fritz wrote:
Dear Dom,
thanks a lot. Yes, this might work sending a combipuck alongside with
a good bottle for the local contact.
I was wondering whether the grippers can handle a block of propane?
Best wishes,
guenter
Dear Guenter,
Would the use of vials inside combi-pucks
(https://www.mitegen.com/product/combipuck-system/) and some
arrangements with your local contact at the other end, perhaps help
with using propane remotely?
BW,
D
On 26/01/2022 16:53, Guenter Fritz wrote:
Dear all,
we have some delicate crystals which might benefit from freezing in
propane. In former times (when I was still travelling to the
beamlines) we waited until the propane was solid in the vial and
then let the propane thaw in the cryo stream at the beamline.
But how can we do this in these days with unipucks and no manual
mounting?
I was thinking about freezing in ethane and then transfer the loops
to liquid nitrogen, similarly we handle grids for cryo EM. Does
somebody has tried that? Any experience, tips & tricks would be very
welcome! Thanks in advance and best regards,
Guenter
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