Mobile and Stationary Phases for Supercritical Fluid Chromatography
Abstract
In supercritical fluid chromatography (SFC), the mobile phase is in the supercritical state. The meaning of the word supercritical (literally: above critical) is explained in Figure 1 . This figure shows a phase diagram for a single (pure) component . Depending on the temperature T and the pressure p, three different states of matter can be distinguished. These are the gaseous (G), liquid (L), and solid (S) states. At the triple point (tp), all three phases can coexist. Above the critical point (cp), a difference between the gaseous and liquid states can no longer be observed. This region in Figure 1 can be defined as that of supercritical fluids (denoted by SF).
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Publication details
- Journal / source
- Advances in chromatography
- Publisher
- CRC Press
- Pages
- 1–80
- Publication date
- 6 January 2026
- Language
- EN
- Document type
- Book chapter