Fabrication of single-walled carbon nanohorns incorporated a monolithic column for capillary electrochromatography
Fabrication of single-walled carbon nanohorns incorporated a monolithic column for capillary electrochromatography
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结合毛细管电色谱整体柱的单壁碳纳米角的制造
DOI：
10.1002/jssc.201700193
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发表时间：
2017
影响因子：
3.1
通讯作者：
Yuanchao Wang
中科院分区：
文献类型：
--
作者：
Hongyan Zhao;Yizhou Wang;Heyong Cheng;Yuanchao Wang
单壁碳纳米角因其独特的性能和多种潜在的应用而引起了人们的极大兴趣。在此，我们证明了单壁碳纳米角结合聚苯乙烯-二乙烯基苯单体作为毛细管电色谱固定相的可行性，并通过一步原位共聚制备了单壁碳纳米角。单壁碳纳米角分散在苯乙烯中，形成稳定均匀的悬浮液。基于单壁碳纳米角的疏水性和π -π静电叠加，整体柱可以有效分离多种芳香族化合物。日内迁移时间和峰面积的精度分别为1.4 ~ 1.9%和1.7 ~ 3.5%，日内迁移时间和峰面积的精度分别为3.2 ~ 6.7%和4.1 ~ 7.4%，柱间迁移时间和峰间迁移面积的精度分别为3.6 ~ 7.2%和5.2 ~ 21.3%，表明单壁碳纳米角嵌套整体柱具有良好的重复性。
Single‐walled carbon nanohorns have received great interest for their unique properties and diverse potential applications. Herein, we demonstrated the feasibility of single‐walled carbon nanohorns incorporated poly(styrene‐divinylbenzene) monolith as the stationary phase for capillary electrochromatography, which were prepared by one‐step in situ copolymerization. Single‐walled carbon nanohorns were dispersed in styrene to give a stable and homogeneous suspension. The monolithic column gave effective separation for a wide range of aromatic compounds, which was based on hydrophobicity and π–π electrostatic stacking of single‐walled carbon nanohorns. The precisions of migration time and peak area varied in the ranges of 1.4–1.9% for intraday trials and 1.7–3.5% for interday trials, and 3.2–6.7% for intraday trials and 4.1–7.4% for interday trials, and 3.6–7.2% for inter‐column trials and 5.2–21.3% for inter‐column trials, respectively, indicating the good reproducibility of single‐walled carbon nanohorns embedded monolithic columns.