| 학회 |
한국화학공학회 |
| 학술대회 |
2008년 가을 (10/23 ~ 10/24, 부산 BEXCO) |
| 권호 |
14권 2호, p.2590 |
| 발표분야 |
분리기술 |
| 제목 |
Ionic liquid-modified silica as stationary phase for HPLC separation |
| 초록 |
A new zwitterionic stationary phase based on silica bonded with 1-methyl-3-propylimidazolium chloride was synthesized and characterized in this paper. The derivatives 1-methyl-3-propylimidazolium chloride was used to modify the surface of 15 μm diameter silica particles to act as the stationary phase for HPLC. The modified particles were characterized by Fourier Transform Infrared (FT-IR) thermogravimetric analysis (TGA) and 13C NMR spectroscopies. The surface modification procedure rendered particles with a surface coverage of 0.89 μmol*m-2 for the alkylimidazolium chloride. Columns packed with the modified silica and silica materials were tested under HPLC conditions. Preliminary evaluation of the stationary phase for HPLC was performed using aromatic carboxylic acids as model compounds. The separation mechanism appears to involve multiple interactions including ion exchange, hydrophobic interaction, and other electrostatic interactions. |
| 저자 |
노경호, 염홍원, 만효룡
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| 소속 |
인하대 |
| 키워드 |
Ionic liquid-modified silica; HPLC; separation
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| E-Mail |
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| 원문파일 |
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