Column comparison tool

[lcrandall]

Hi
I'm trying to find an equivalent column to an Alltech Alltima C18 150x4.6mm, 5um. It has 12% carbon load and is monomeric.
I know ACD labs has a tool that you can download, but I am hesitant to put any more junk on my computer without knowing if it is reliable.
Any ideas?
Thanks!

[Schmitty]

I find the Phenomenex catalogs to be quite helpful. There are sections for HPLC and GC...and each type of packing has it's own blurb about the important characteristics.

[rhaefe]

have you tried the USP column data base yet?

http://www.usp.org/USPNF/columns.html

[lcrandall]

The USP tool was terrific!
Thanks!