Figure 12-7. Plots of analyte retention versus temperature (A) and pressure (B) on a C18 stationary phase, at 2 mL/min with CO2/methanol (95:5) at 210 bar (A) and CO2/methanol (97:3) at 40oC (B).
Reproduced from Zou, W., Dorsey, J.G., Chester, T.L., 2000. Modifier effects on column efficiency in packed-column supercritical fluid chromatography. Anal. Chem. 72, 3620-3626 with permission. Also see the reference for further details of experimental measurements.
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