sophia i dont have any idea abt vivaspin concentrators,can u send some details abt it,sice we are also facing the precipitation problem during the concn.
thanks atul -----Original Message----- From: CCP4 bulletin board on behalf of Sophia Tsai Sent: Wed 5/6/2009 7:12 AM To: CCP4BB@JISCMAIL.AC.UK Subject: Re: [ccp4bb] Lost my protein Hi everyone, It seems that our lab has experienced issues with precipitation of some proteins (not all) with the Amicon concentrators. For those, we have started using VivaSpin concentrators. That seems to work fairly well with those that have issues with the filters. You may want to give it a try. Best, Sophia