2017-2. Filters and Filtration in Liquid Chromatography — What to Do

Delivering samples to the analytical column in “clean” mobile phase is important for robust methods and high quality results. LCGC 35(2) 98-103 (2017) Dwight Stoll Note: this is the first installment of “LC Troubleshooting” in the transition period from John Dolan to Dwight Stoll. The pdf contains an editorial page […]

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2010-8. System Contamination

Deterioration of the separation can result from many causes. This month’s column looks at some techniques to isolate the problem source. LCGC28(8) 592-596 (2010) John W. Dolan

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1994-1. Extra Peaks

Extra peaks — where do they come from? Here’s a method to help you find out. LCGC 12(1) 19-20 (1994) John W. Dolan erratum at 12(3) p 200 calculation errors associated with Figure 2: First, the width of the 10-min peak should have been 8.0 mm, not 0.8 mm. Second, […]

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