New Column Designs for MicroGC (Preprint)

Abstract : New column designs that give lower dispersion than column designs presented previously are presented. All of the work so far has concentrated on columns that are arranged with a spiral geometry. Spiral columns show lower dispersion than serpentines in chip scale electrophoresis and the assumption has been that spirals would also give lower dispersion than serpentines for microGC. We also test various turn geometries to see which gives the lowest dispersion. We have examined spiral and serpentine columns. We have also considered several turn geometries.