Open-tubular capillary electrochromatography using carboxylatopillar[5]arene as stationary phase.

摘要: Pillar[n]arenes have achieved much interest in material chemistry and supramolecular due to unusual pillar shape structure high selectivity toward guest. However, pillar[n]arenes not yet been applied capillary electrochromatography. This work at first time reports that carboxylatopillar[5]arene is used as a stationary phase open-tubular Carboxylatopillar[5]arene only possess the advantages of but also provide free carboxy groups for immobilizing on inner wall column via covalent bonding. The characterization SEM FT-IR indicated was successfully grafted capillary. baseline separation model analytes including neutral, basic acidic compounds, nonsteroidal anti-inflammatory drugs dansyl-amino acids thanks electron-rich cavity hydrophobic interactions between phase. intraday, interday column-to-column precisions (relative standard deviations, RSDs) retention peak area neutral were all less than 3.34% 9.65%, respectively. indicates great potential electrochromatography novel phase. This article protected by copyright. All rights reserved