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John Dolan has been writing "LC Troubleshooting" for LCGC for over 20 years. One of the industry's most respected professionals, John is currently the Vice President of BASi Northwest Laboratory, McMinnville, Oregon and a principal instructor for LC Resources, Walnut Creek, California. He is also a member of LCGC's editorial advisory board.
In this month's column, John Dolan reveals a number of simple and useful shortcuts or rules of thumb that he has acquired over the years that allow quick estimates to guide method development or help solve a problem.