Split injection into a capillary column at very low split ratios

Abstract

The solute zone in the inlet liner of a split injector at very low split ratios are split because of significant differences between the mean linear velocities in the capillary and in the liner. As the frontal part of the split zone of the solute moves through the liner with a velocity comparable with that in the capillary, radial diffusion is the limiting process. Given the diffusion coefficient of the solute, the radial mixing of the frontal part of the solute zone can he improved both by the inlet liner and the zone extension.