The 10 or 15 cm monolithic
column is prepared using 1/8 in. o.d. 2.3 mm i.d. poly(ether ether ketone) or PEEK
tubing. The reaction is accomplished thermally at 60 C for several hours by polymerization
of butyl methacrylate cross-linked with ethylene glycol dimethacrylate in a
porogen system consisting of 1,4-butanediol, 1-propanol, and water.