Particulate matter from the sample or the system can cause havoc in the chromatogram. LCGC 33(12) 894-899 (2015) John W. Dolan Errata: Note that there was a transposition error in this and two associated articles. In the referenced table, the words “Symptom” and “Cause” have been reversed. That is, “Cause” […]
Read More →The refractive index detector can be frustrating to use because of its extreme sensitivity to temperature and other variables. However, it can see things that no other detector can see. LCGC 30(12) 1032-1037 (2012) John W. Dolan Erratum: see 30(10)
Read More →What do you do when the system presure is not what it is supposed to be? LCGC 29(9) 818-824 (2011) John W. Dolan
Read More →How to quickly get to the root of the problem. LCGC 27(12) 1040-1044 (2009) 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 →When is it time to throw in the towel? LCGC 23(4) 370-375 (2005) John W. Dolan
Read More →Poor reproducibility is a sure sign of problems. LCGC 15(12) 1118-1120 (1997) 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 →“My system died” is a common laboratory lament. Use this guide to find out what broke and how top fix it. LCGC 10(7) 508-514 (1992) John W. Dolan
Read More →Readers’ Questions LCGC 9(12) 834-836 (1991) John W. Dolan
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