Instruction manual

9. Technical Information
9-50
RF-20A/20Axs
Sources: A.M.Krstulovic, P.R.Brown: Reversed-Phase High-Performance Liquid Chromatography, Wiley
Interscience (1982)
(1) An asterisk (*) indicates solvents most suitable for LC, with low boiling points (> 45 °C) and low
viscosity (≤ 0.5 cp). Double asterisks (**) indicate solvents with a very low viscosity and boiling point.
(2) "LC" in the "Source" column indicates that a grade of solvent specifically for LC is commercially
available from companies like the following:
Burdick & Jackson, Baker Chemical, Mallinckrodt Chemical, Fischer Scientific, Waters Associate,
Manufacturing Chemists, Inc.
"GC" in the "Source" column indicates that a solvent is used as a stationary phase for gas
chromatography, and can be purchased from companies selling GC columns and stationary phases.
(These solvents are used as a stationary phase in liquid-to-liquid LC.)
(3) The wavelength (nm) below which the mobile phase becomes opaque.
(4) Refractive index at 25 °C.
(5) Polarity parameter of mobile phase.
(6) Mobile phase's strength parameter in relation to liquid-to-solid adsorption in alumina.
(7) Water solubility (%
W
) at 20 °C of mobile phase used in liquid-to-solid adsorption.
(8) Value at 20 °C.
(9) Function consisting of p' (proportional to mobile phase strength) plus the dielectric constant, in ion
chromatography.