[Preparation of capillary gas chromatographic columns for separation of polar organic compounds by sol-gel method].
A sol-gel method was used in preparing capillary gas chromatographic columns with simplicity and rapidity. Due to the formation of the chemical bonds between the coating layer and the inner wall of the capillary, the thermal stability of the column was greatly increased. The sol-gel poly(dimethyl-siloxane) (PDMS) column was able to withstand temperatures as high as 400 degrees C. This column showed excellent separation of free fatty acids, amines, and other polar compounds. The sol-gel column also showed good repeatability of retention time on a single column as well as good repeatability of capacity factor, column efficiency, symmetry and McReynold's constant on several columns of the same type.
Wang
Dong-xin
DX
College of Chemistry & Environmental Science, Nanjing Normal University, Nanjing 210097, China.
Malik
Abdul
A
D000588:Amines / Q000302:isolation & purification*; D002849:Chromatography, Gas / Q000295:instrumentation* / Q000379:methods; D019856:Ethanolamine / Q000302:isolation & purification; D005230:Fatty Acids, Nonesterified / Q000302:isolation & purification*; D019904:Polymethyl Methacrylate; D058428:Silica Gel; D012822:Silicon Dioxide; D014269:Trifluoroacetic Acid / Q000302:isolation & purification
D000588:Amines; D005230:Fatty Acids, Nonesterified; D019856:Ethanolamine; D058428:Silica Gel; D012822:Silicon Dioxide; D019904:Polymethyl Methacrylate; D014269:Trifluoroacetic Acid