In his final column before retirement, John Dolan reminisces about his years as the author of “LC Troubleshooting,” and some of the hcanges that have taken place in liquid chromatography (LC) technology during that time. LCGC 35(10) 746-750 (2017) John W. Dolan *ed. notes: (1) This is John Dolan’s last […]
Read More →Understanding how liquid chromatography pumps operate can help streamline solving pump problems. LCGC 34(5) 324-329 (2016) John W. Dolan
Read More →What’s happened in the last 30 years? What will happen next? LCGC 31(10) 854-859 (2013) John W. Dolan
Read More →After more than 40 years, the reciprocating-piston pump remains at the heart of the LC system. LCGC 26(12) 1168-1174 (2008) John W. Dolan
Read More →How to make your column last forever. LCGC 23(11) 1174-1181 (2005) John W. Dolan
Read More →Changes in retention time can be a key to tracking down LC problems. LCGC 22(12) 1154-1158 (2004) John W. Dolan
Read More →Drip, drip, drip — are leaks inevitable? LCGC 21(5) 440-444 (2003) John W. Dolan erratum for 21(4) complete text here
Read More →Routine maintenance will extend the life of your pump, a vital module in any liquid chromatography system. LCGC 15(2) 110-113 (1997) John W. Dolan erratum: sidebar should read 1% and 2% for pump specifications, not 0.1% and 0.2% (printed in 15(4))
Read More →This month, readers share tips and suggestions for solving problems discussed in past LC Troubleshooting columns. LC-GC 13(12) 940-943 (1995) John W. Dolan
Read More →A reader complains of leaks and short pump seal life. LCGC 13(7) 530-532 (1995) John W. Dolan
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