We have updated the LC Resources web site to include a series of "mini seminars" on various aspects of HPLC troubleshooting. Here's the link:
http://www.lcresources.com/more_resources .

At the moment, there are 4 "Troubleshooting Tips" available (each is about 15 minutes):
  • * Gradient dwell volume tips
    * Diagnosing gradient artifact peaks
    * Diagnosing peak shape problems
    * How to track down precision problems
These are free, but you will have to register in order to access them, and you will then receive regular e-mail updates about LC Resources HPLC and MS training courses (you can "unsubscribe" at any time).