期刊
MICROCHIMICA ACTA
卷 186, 期 9, 页码 -出版社
SPRINGER WIEN
DOI: 10.1007/s00604-019-3723-z
关键词
Molecular modeling; Splitting mechanism; Tetramethylammonium-L-arginine; Ionic liquid; Small molecule; Glycidyl methacrylate; Monolithic column; Nanoparticles
资金
- Natural Science Foundation of Jiangsu Province [BK20141353]
The preparation of an organic polymer monolithic column modified with an amino acid ionic liquid and graphene oxide (AAIL-GO) and its application to capillary electrochromatography (CEC) was described. The AAIL tetramethylammonium-L-arginine was bonded to a monolithic column that was previously modified with graphene oxide by using an hydrochloride/N-hydroxysuccinimide coupling reaction. The morphology of a poly(glycidyl methacrylate-co-ethylene dimethacrylate) monolith was examined by scanning electron microscopy. The incorporation of AAIL and graphene oxide was detected by infrared spectroscopy and elemental analysis. The resulting monolithic column produced a strong and stable electroosmotic flow from the anode to the cathode in the pH range from 3 to 9. Compared with a column modified with AAIL or graphene oxide only, the AAIL-GO-modified column has a better separation ability for amino acids, beta-blockers, and nucleotides (the resolution of three amino acids: 2.231 and 2.036, beta-blockers: 2.779 and 2.470 and nucleotides: 8.345 and 3.321). Molecular modeling was applied to demonstrate the separation mechanism of small molecules which showed a good support for experimental results.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据