– This is a pretty sophisticated simulator for 1D chromatography (developed by Peter Carr and Dwight Stoll) that allows the user to quickly observe the effects of a number of chromatographic variables on a reversed-phase HPLC separation.

– Database of RPLC column selectivity, started by Snyder, Dolan, and Carr, and continued currently by the Stoll Laboratory.

– By Dr. John Dolan – This is a collection of troubleshooting articles Dr. Dolan has written over the years for LCGC Magazine.