By Jimmy on Wednesday, July 3, 2002 - 09:47 am:
I am looking for polymer-based weak cation exchange SPE cartridges. Please let me know if you are aware of any.
By H W Mueller on Thursday, July 4, 2002 - 11:15 pm:
Tried yesterday already, here again:
Check Bio-Rad.
By Robert Shall on Friday, July 5, 2002 - 11:11 am:
Try ChromBA, usually have such things at a good price.
1-814-867-4110