POROUS-GLASS AS A SUPPORT FOR CHEMICALLY BONDED STATIONARY PHASES FOR HPLC

Two different types of porous glass (PG) were submitted to a thermal treatment in a temperature range from 620°C-700°C for 2 to 100 h. The materials thereby obtained have been characterized by static Secondary Ion Mass Spectrometry (SIMS). Special attention was paid to the change of the boron surface concentration. In addition we studied the specific surface area (SBET) dependence on the thermal treatment parameters, such as heating time and heating temperature. Selected PG materials have been modified with organosilanes and characterized prior to their use as packings in RP-HPLC. © 1990 Springer-Verlag.