| Hydrogen-bond effect and ion-pair association in the separation of neutral calix[4]pyrroles by nonaqueous capillary electrophoresis | |
| Department | 甘肃省天然药物重点实验室 |
Ma HQ(马华侨); Luo MN(罗米娜); Shao SJ(邵士俊) ; Liu X(刘霞); Jiang SX(蒋生祥)
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| 2008 | |
| Source Publication | Journal of Chromatography A
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| ISSN | 0021-9673 |
| Volume | 1188Pages:57-60 |
| Abstract | A study on the migration behavior of four neutral macrocyclic compounds calix[4]pyrroles (C4Ps) by nonaqueous capillary electrophoresis (NACE) with tetrabutylammonium halide salts as background electrolyte (BGE) is described. Systematic studies were carried out with different BGE in acetonitrile (ACN) to elucidate the involved phenomena. The effect of BGE concentration on analytes effective mobilities μeff,i was studied. Rough values of analytes absolute mobilities μ∞,i were obtained by extrapolation of effective mobilities to zero ionic strength of BGE. Stokes radius of C4Ps in the form of C4PF− and C4PCl− was calculated. The complex constants of C4Ps with F− anion and Cl− anion and ion-pair association constants of each C4PF− and C4PCl− with tetrabutylammonium cations was evaluated and confronted. Hydrogen bonding effect is prerequisite in the separation; meanwhile ion-pair association which is intensified by steric hindrance effect plays an important role. |
| Keyword | Calix[4]Pyrrole Tetrabutylammonium Fluoride Tetrabutylammonium Chloride Nonaqueous Capillary Electrophoresis Hydrogen-bond Effect Ion-pair Association |
| Subject Area | 分析化学与药物化学 |
| Funding Organization | the National Nature Science Foundation of China through the number 20475058 and 20527005 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 药物分离材料研究组 ; 药物分子识别研究组 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/1384 |
| Collection | 中科院西北特色植物资源化学重点实验室/甘肃省天然药物重点实验室 |
| Corresponding Author | Jiang SX(蒋生祥) |
| Recommended Citation GB/T 7714 | Ma HQ,Luo MN,Shao SJ,et al. Hydrogen-bond effect and ion-pair association in the separation of neutral calix[4]pyrroles by nonaqueous capillary electrophoresis[J]. Journal of Chromatography A,2008,1188:57-60. |
| APA | 马华侨,罗米娜,邵士俊,刘霞,&蒋生祥.(2008).Hydrogen-bond effect and ion-pair association in the separation of neutral calix[4]pyrroles by nonaqueous capillary electrophoresis.Journal of Chromatography A,1188,57-60. |
| MLA | 马华侨,et al."Hydrogen-bond effect and ion-pair association in the separation of neutral calix[4]pyrroles by nonaqueous capillary electrophoresis".Journal of Chromatography A 1188(2008):57-60. |
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