The low-form foam dewar is really nice to work with. Fills easily
without excessive boiloff, and holds level pretty well while working
with crystal loops and vials. Best of all, not much ice will accumulate
at the top of the container while working. Best of all, my
undergraduates can't break it (easily). We keep one in our lab. I'm less
enthusiastic about the tall-form dewars. I used one at CHESS and thought
it didn't form any less ice than my traditional tall dewars, seemed to
have a rapid boiloff while holding my working sample straws (compared to
my normal dewars), and was a little cramped on the inside. I don't own
any of these, and prefer the traditional tall dewars. If I was traveling
with working dewars, I would still consider the foam simply because of
its sturdiness. YMMV
--
------------------------------------------------------------------------
Roger S. Rowlett
Professor
Colgate University Presidential Scholar
Department of Chemistry
Colgate University
13 Oak Drive
Hamilton, NY 13346
tel: (315)-228-7245
ofc: (315)-228-7395
fax: (315)-228-7935
email: [EMAIL PROTECTED]
Jean-Baptiste REISER wrote:
Dear all,
Does anyone in the biocrystallogaphy community use foam dewars for
handly liquid nitrogen and freezing/manipulating frozen protein crystals ?
We are interested in the following dewar package from Hampton Research
:
http://www.hamptonresearch.com/products/ProductDetails.aspx?cid=24&sid=187&pid=559
But before purchasing, we would like to have any comments on the
advantages and drawbacks from people who already tried those dewars.
Thanks in advance for your help and advices.
--
*Dr JEAN-BAPTISTE REISER - Chargé de recherche CNRS*
******************************************************************************************
*Laboratoire de Cristallographie et Cristallogenèse des Protéines (LCCP)*
*et Partnership for Structural Biology (PSB)*
*Institut de Biologie Structural Jean-Pierre Ebel (IBS) - CNRS - CEA -
UJF*
41, rue Jules Horowitz
38027 Grenoble - France
Phone : +33 (0)4 76 20 94 49
Fax : +33 (0)4 76 20 94 80
E-mail : [EMAIL PROTECTED]
Web sites : http://www.ibs.fr ; http://psb.esrf.fr
******************************************************************************************
