Abstract
Performance and stability were tested for radial compression columns packed with spherical particles of an octadecyl bonded silica. The performance of the radial columns remained unchanged after approximately 500 h of constant use, including a number of solvent gradient runs. The performance of analytical columns packed with the same material was comparable to that of the radial columns. The column permeability decreases and the inlet pressure required to maintain a constant flow-rate increases with increasing radial compression pressure. Maximum column efficiency was obtained for a value of radial compression pressure approximately equal to 25 bar.
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