The investigation of diatomaceous earth supports for chromatograph using scanning electron microscopy
Nobuta HAYASHI, Shigeo Inoue, Keiji Takeuchi · BUNSEKI KAGAKU · 1969
Surface structures of several kinds of diatomaceous earth supports, either washed with acids, coated with stationary liquids, or deteriorated in use, were observed under a scanning electron microscope.C-22, Celite 545, Chromosorb-W and -P of commercially available diatomaceous earth supports were observed to have similar microstructures composed of fragmentary remains of diatomaceae.On the other hand, Anakrom U and Gas Chrom S are composed of complete remains.These observations provide useful informations on relations between surface structures of column packing materials and their performances.