科研之友
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摘要
Based on an RP-18 sintered plate, a new type of plate, RP-18 sintered aluminum nitride ceramic plate, was manufactured, which was made from silica gel and glass powders sintered on an aluminum nitride ceramic plate by bonding octadecyl and methyl silanes in suitable proportion. The key step of making such a plate was to soak the ceramic plate in the solution of sodium hydroxide before coating; other steps were the same as those of conventional RP-18 sintered plates. Besides its high mechanical stability and regeneration ability, the plate could work perfectly without addition of any buffer salts to mobile phase in planar electrochromatography (PEC) and was superior in eliminating joule heating. In this work, we used only the conventional apparatus to study the superiority of the new plate in eliminating joule heating from one side of the thin layer. The new plate would exhibit more of its superiority if it were used on pressurized PEC (PPEC) to eliminate joule heating from
- 出版日期2011-8
- 单位沈阳药科大学
