13 Citations (Scopus)

Abstract

Some 50 years after Giddings's iconic comparison of the separation speed of gas chromatography (GC) and liquid chromatography (LC), the authors revisit this comparison using kinetic plots of the current state-of-the-art systems in LC, supercritical fluid chromatography (SFC), and GC. It is found that, despite the major progress LC has made in the past decade (sub-2-mu m particles, pressures up to 1500 bar, core-shell particles), a fully optimized ultrahigh-pressure liquid chromatography (UHPLC) separation is still at least one order of magnitude slower than capillary GC. The speed limits of packed bed SFC are situated in between.
Original languageEnglish
Pages (from-to)284-291
Number of pages7
JournalLC-GC Europe
Volume30
Issue number6
Publication statusPublished - Jun 2017

Keywords

  • Supercritical-fluid chromatography
  • Core-shell particles
  • kinetic plot method
  • SUB-2 MU-M
  • superficially porous particles
  • tubular capillary columns
  • liquid-chromatography
  • gas-chromatography
  • high-pressures
  • Mobile-Phase

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