A woven textile fabric, consisting of 60% cotton/40% polyester, tightly rolled in a cylindrical
configuration, has a three-dimensional structure with sufficient hydrodynamic stability to
withstand interstitial eluent velocities of up to 300 cm/min when packed into standard liquid
chromatography column assemblies. Demonstration of the pressure stability of the cotton/polyester fabric was followed up with experiments in which the cotton (cellulose) portion was
derivatized and the fabric evaluated for chromatography of proteins. When derivatized to give
a (diethylamino)ethyl (DEAE) anion exchanger, a velocity independent plate height of 2 mm, a
static capacity of 115 mg of bovine serum albumin/g of stationary phase, and a dynamic protein
loading capacity which decreases only 25% over an 800% increase in mobile-phase velocity from
6.7 to 54 cm/min was achieved. The fibers that make up the stationary phase have a relatively
nonporous structure which minimizes pore diffusional effects. A protein separation of Cytochrome
C from β-lactoglobulin A is shown to be completed by ion-exchange chromatography in less than
10 min using an NaCl step gradient. Gradient chromatography of a hen egg white shows
resolution of the proteins into two major components (lysozyme and ovalbumin) as well as two
minor ones. A size exclusion separation of PEG 20 000 from glucose requires only 90 s. These
characteristics, together with the ability of the cellulose-based stationary phase to withstand
rapid flow rates, indicate that this type of stationary phase has potential for applications where
chromatography using DEAE-cellulose particles has proven successful.
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