V. Coman et C. Marutoiu, THE PREPARATION OF N-OCTYL-BONDED VOLCANIC TUFF AS STATIONARY-PHASE FOR TLC, JPC. Journal of planar chromatography, modern TLC, 7(6), 1994, pp. 450-452
A stationary phase for thin layer chromatography has been prepared by
bonding purified volcanic tuff (rich in silica gel) with 1-octene. The
phase has been characterized by elemental analysis, by measurement of
specific surface area and IR spectra, and by chromatographic testing.