By Anonymous on Tuesday, January 7, 2003 - 06:39 am:
Hi
I am using a 5 micrometer, 4.6 x 50mm Reverse phase XETERRA column. I need to get a column faster than this without changing the hardware like the pump or LC instrument itself. I have a Perkin Elmer 200 series HPLC system. There are so many columns outthere. Which one do I need please advice. I basically want a faster column without losing the quality.
thanks.
By Anonymous on Tuesday, January 7, 2003 - 08:34 am:
Xterra comes in a 4.6 x 30 mm configuration. I have found that the chemistry support staff at Waters is very helpful and can help you find what you need. 1-800-252-4752
By Anonymous on Tuesday, January 7, 2003 - 11:12 am:
You might also look into one of the new Chromolith columns, they offer VERY low backpressure and allow very high flow rates giving very short analysis time.
regards,
Mark
By Anonymous on Tuesday, January 7, 2003 - 04:07 pm:
XTerra is available in as low as 2 cm length, with smaller particles for very fast separations. Check on Waters webside!
By Gerhard Kratz on Monday, January 13, 2003 - 12:41 am:
If speed is needed, without loosing resolution, very small particles are recommended. Problem is to find a material, which will give you still a backpressure your system can handle. Small particles allow higher linear velocity, what means higher flow rate, without loosing resolution. Another possible material are nonporous resins. There are 2µm porous and 2,5µm nonporous materials available with different modifications. For further information please click on www.tosohbioscience.com! Good luck. Gerhard