What should you do if your retention times drop from one injection to the next? A systematic approach to troubleshooting can help to quickly identify the problem source. LCGC 34(4) 254-261 (2016) John W. Dolan
Read More →Why are liquid chromatography retention times sometims so slow to stabilize? LCGC 33(2) 102-107 (2015) John W. Dolan
Read More →Retention-time drift, temperature control, and broad peaks from a new column are the topics in this month’s discussion. LCGC 30(8) 634-636 (2012) 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 →When two failures occur at nearly the same time, troubleshooting can be confusing. LCGC 11(5) 344-349 (1993) Daniel H. Marchand, Janice A. Lewis, and John W. Dolan
Read More →Just because most separations are performed on reversed-phase columns doesn’t mean that other types of columns don’t have problems that need to be addressed. LCGC 8(10) 768-772 (1990) John W. Dolan
Read More →Readers’ Questions LCGC 6(1) 20-22 (1988) John W. Dolan
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