Re: [ccp4bb] frosted crystals during storage in pucks

2013-08-01 Thread James Holton
om: CCP4 bulletin board [mailto:CCP4BB@JISCMAIL.AC.UK] On Behalf Of Ginell, Stephan L. Sent: Friday, July 12, 2013 12:45 AM To: CCP4BB@JISCMAIL.AC.UK Subject: Re: [ccp4bb] frosted crystals during storage in pucks My experience with xtals frosting in LN2 either in a dewar, while freezing, or in puc

Re: [ccp4bb] frosted crystals during storage in pucks

2013-07-17 Thread Johan Turkenburg
Email: esn...@hwi.buffalo.edu > Telepathy: 42.2 GHz > > Heisenberg was probably here! > > > -Original Message----- > From: CCP4 bulletin board [mailto:CCP4BB@JISCMAIL.AC.UK] On Behalf Of > Ginell, Stephan L. > Sent: Friday, July 12, 2013 12:45 AM > To: CCP4BB@JISCM

Re: [ccp4bb] frosted crystals during storage in pucks

2013-07-17 Thread Mark J van Raaij
rch Institute >>> 700 Ellicott Street, Buffalo, NY 14203-1102 >>> Phone: (716) 898 8631 Fax: (716) 898 8660 >>> Skype: eddie.snell Email: esn...@hwi.buffalo.edu >>> Telepathy: 42.2 GHz >>> >>> Heisenberg was probab

Re: [ccp4bb] frosted crystals during storage in pucks

2013-07-17 Thread Phil Evans
In response I felt I had to post the low-tech version (not mine)PhilOn 16 Jul 2013, at 11:57, Edward Lowe wrote:At Elspeth's request, here's a link to a picture of the rack we use fordrying out shipping dewars.https://www.dropbox.com/s/8ber2iikra9x73y/2013-02-21%2013.39

Re: [ccp4bb] frosted crystals during storage in pucks

2013-07-16 Thread Edward Lowe
nberg was probably here! > > >-Original Message- >From: CCP4 bulletin board [mailto:CCP4BB@JISCMAIL.AC.UK] On Behalf Of >Ginell, Stephan L. >Sent: Friday, July 12, 2013 12:45 AM >To: CCP4BB@JISCMAIL.AC.UK >Subject: Re: [ccp4bb] frosted crystals during storage in pucks

Re: [ccp4bb] frosted crystals during storage in pucks

2013-07-12 Thread Edward Snell
here! -Original Message- From: CCP4 bulletin board [mailto:CCP4BB@JISCMAIL.AC.UK] On Behalf Of Ginell, Stephan L. Sent: Friday, July 12, 2013 12:45 AM To: CCP4BB@JISCMAIL.AC.UK Subject: Re: [ccp4bb] frosted crystals during storage in pucks My experience with xtals frosting in LN2 either in

Re: [ccp4bb] frosted crystals during storage in pucks

2013-07-11 Thread Ginell, Stephan L.
My experience with xtals frosting in LN2 either in a dewar, while freezing, or in pucks, has been because the LN2 was contaminated with ice crystals The fog you see above your dewar when freezing xtals is frozen water vapor...it will fall and collect in the LN2 and also deposit on the xtals. De

Re: [ccp4bb] frosted crystals during storage in pucks

2013-07-11 Thread Nathaniel Clark
At our last synchrotron trip, the beamline staff suggested that the problem was due to moisture accumulation in the dry shipper. They recommended storing them inverted (for a few weeks, if I recall), and/or putting a supply of dry air in the dewer. Haven't tried it yet! Nat On Thu, Jul 11, 2013

[ccp4bb] frosted crystals during storage in pucks

2013-07-11 Thread
Hi All, We found if the crystals are storaged in pucks for 3-4 days in shipping dewar (with liquid nitrogen), they are almost frosted. Although I can wash them with liquid nitrogen, but it's not convenient to do that for each crystals. I doubt it's because the humid air in North West America. Doe