| Title | A block copolymer covalent coating acting as surfactants in separation of 2-[hydroxy(4-nitrophenyl)methyl]-cyclopent-2-enone and 4-nitrobenzaldehyde by capillary electrophoresis |
| Authors | Qiao, Juan Qi, Li Ma, Huimin Liu, Huwei Yang, Jun Chen, Yi Yang, Gengliang |
| Affiliation | Chinese Acad Sci, Inst Chem, Lab Analyt Chem Life Sci, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China. Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China. Peking Univ, Coll Chem & Mol Engn, Beijing 100871, Peoples R China. Hebei Univ, Coll Pharm, Baoding 071002, Peoples R China. Chinese Acad Sci, Inst Chem, Lab Analyt Chem Life Sci, Beijing Natl Lab Mol Sci, 2 Beiyijie, Beijing 100190, Peoples R China. |
| Keywords | Block copolymer Surfactant Capillary coating Covalent bonding ZONE-ELECTROPHORESIS MICELLES MEDIA SURFACES UNIQUE |
| Issue Date | 2009 |
| Publisher | talanta |
| Citation | TALANTA.2009,80,(2),770-776. |
| Abstract | An innovative block copolymer capillary coating P(MAn-alt-St)(127)-b-PSt(592), synthesized by maleic anhydride and styrene, was developed as a new kind of coating for capillary electrophoresis. The covalent bond coating was effectively applied in the separation of raw material (4-nitrobenzaldehyde) and production (2-[hydroxy(4-nitrophenyl)methyl]-cyclopent-2-enone) in a Baylis-Hillman reaction using ammonium acetate with 20% tetrahydrofuran (v/v) as the buffer solution. Electroosmotic flow measurement gave an instantly stable value after 70 times continued injection in 5 days and showed that P(MAn-alt-St)(127)b-PSt(592) coatings could suppress electroosmotic flow effectively compared with the bare capillary. The effects of tetrahydrofuran and the pH of buffer on the separation were investigated. The characteristics of the coatings to form micelles similar to surfactants were detected by atomic force microscopy. Moreover, the superiority of this coating was further applied in the separation of four aromatic amines. (C) 2009 Elsevier B.V. All rights reserved |
| URI | http://hdl.handle.net/20.500.11897/244954 |
| ISSN | 0039-9140 |
| DOI | 10.1016/j.talanta.2009.07.056 |
| Indexed | SCI(E) EI |
| Appears in Collections: | å å¦ä¸ å å å·¥ç¨ å¦é ¢ |
