Micropacked columns: a suitable alternative to very thick capillary columns

A comparative study has been made between micropacked and thick film capillary columns, based on the specific column efficiency (theoretical plate number per metre of column length), peak resolution and sample capacity. Data were obtained fox six columns with similar phase ratios: three micropacked columns and three capillary columns, whose thickness ranged from 0.84 to 2.62 μm. The column length and analysis time required to achieve a given resolution are also included.This work was made possible by financial assistance from the Comision Asesora de Investigacibn Cientifica y Tecnica, Proyect 237/84. One of us (G.R.) is also grateful to the Consejo Superior de Investigaciones Cientificas for a grant.Peer reviewe