Chromatography columns

chromatographic apparatus containing a tube having a solid absorbent bonded to the inside of the tube, namely, capillary tubes having absorbents bonded to the inside of the tube for use in chemical separations

chromatographic apparatus containing a metal tube having a solid adsorbent bonded to the inside of the tube, namely capillary tubes having adsorbents bonded to the inside of the tube for use in chemical separations