The authors address the confusing lack of harmonization in how to calculate RRT. A discussion of five separations performed on 59 different columns suggests that this inconsistency can lead to incorrect peak identification.
John Dolan answers questions about two LC practices: column regeneration after a reversed-phase gradient has been run, and which degassing technique is best.
Revisiting the years following Mikhail Tswett's first lecture on liquid-liquid adsorptive separations, John Hinshaw reviews the developments that established modern gas chromatography.