Re: [ccp4bb] Superdex 200 PC columns

2007-05-13 Thread Andrew Beavil
Subject: [ccp4bb] Superdex 200 PC columns Sorry for perhaps off-topic question but I am writing to ask if anyone has experience in using Amersham Superdex 200 PC 3.2/30 columns in conjuction with the Precision Column holder on a standard (not SMART system) AKTA FPLC. At the moment using a Super

Re: [ccp4bb] Superdex 200 PC columns

2007-05-12 Thread Miguel Ortiz-Lombardia
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hi, You're right, there are two cell path sizes in AKTA systems: 2 mm and 10 mm. I don't know what path had the SMART. You definitely need the second one if you want to work with low protein concentrations. Miguel En/na Juergen Bosch ha escrit: > H

Re: [ccp4bb] Superdex 200 PC columns

2007-05-12 Thread Juergen Bosch
Hi all, Isn't the flow cell volume the limiting factor for your detection limit ? I believe for the "old" Aktas (~5-8 years old) there were two cell sizes a laerger one and a smaller one, and I don't think it is the same size as in the SMART system. But I might be wrong. Jürgen [EMAIL PROTE

Re: [ccp4bb] Superdex 200 PC columns

2007-05-12 Thread mlamers
Hi Robert, In my experience, there is no problem running a SMART column on an AKTA FPLC or Explorer. I have been using the same S75, S200, and Superose6 columns on all three systems depending on which one is available that day. I typically load 50 ul sample, between 10-0.01 mg/ml. The peak width I

Re: [ccp4bb] Superdex 200 PC columns

2007-05-12 Thread artem
It greatly depends on the state of your instrument - how well you took care of the optical elements, etc. It also depends on the initial concentration of the sample (and therefore the peak volume at detection time) and on the optical activity of the sample and the buffer. If the stars align and eve

Re: [ccp4bb] Superdex 200 PC columns

2007-05-12 Thread Miguel Ortiz-Lombardia
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hi Robert, I have run those PC 2.3/30 with ~10 ug of protein (of course this depends on the protein) and still get a useful signal at 280 nm. If you don't have anything interfering at ~215 nm and your HPLC system can read at that wavelength, you can e

[ccp4bb] Superdex 200 PC columns

2007-05-12 Thread Robert Cleverley
Sorry for perhaps off-topic question but I am writing to ask if anyone has experience in using Amersham Superdex 200 PC 3.2/30 columns in conjuction with the Precision Column holder on a standard (not SMART system) AKTA FPLC. At the moment using a Superdex 200 10/300 column on a standard AKTA I ca