Cleaning up labelled nucleotides

[KARN at Butler.EDU]

Howdy Netters,
	For many moons, I have been using NENSORB 20 columns from NEN Dupont
to clean up nucleotides from end-labelling or incorporation reactions prior
to using the labelled nucleotide products to probe DNA on filters.  I suspect
that there are cheaper, more efficient systems that I have somehow missed.
Anyone have any suggestions?
Bob Karn
KARN at BUTLERU.edu