Liquid chromatography, HPLC
Analytical Chemistry and Spectroscopy
Wiley InterScience Backfile Collection 1832-2000
Chemistry and Pharmacology
Successful packing of high quality HPLC columns is dependent upon a number of parameters. Especially when using slurry packing techniques, the absence of conglomerates of particles in the slurry and the wettability of the particles are important. The method described in this paper fulfills these conditions, imparting a ξ potential to the 5 and 10 μm silica particles by applying a pH gradient. This results in repulsive forces between the particles and hence leads to a well-controlled monodisperse situation. Water is used as a slurry and displacement liquid; it combines the advantages of excellent wetting properties and non-toxicity.
Type of Medium: