[ccp4bb]: transporting crystals (fwd)

[Vally! <vep3@leicester.ac.uk>]

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ccp4bb@dl.ac.uk

Dear all

Sorry this is not really a ccp4 matter but................
We have had a number of problems transporting frozen crystals to
the ESRF in the liquid N2 dry shipper. A lot of residue and ice
seems to form on the loops resulting in problems seeing the
crystals and increasing the background diffraction. A possible solution
is using the frozen ethane block method. Does anyone have any details
of how to make frozen blocks and where a supplier of ethane gas is found 
in the Uk.



yours jonas

Dr Jonas Emsley
Dept of Biochemistry
Leicester University
Leicester, le1 7rh
United Kingdom
tel:01162523820 fax: 01162523473  email: je14@le.ac.uk
http://www.le.ac.uk/by/pcem1/jonas/jonhome.htm