Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803, USA.
Electrophoresis. 2013 Apr;34(8):1197-202. doi: 10.1002/elps.201200497. Epub 2013 Mar 20.
The research literature currently abounds with studies of graphene-related materials as a result of the extraordinary properties of such materials. On the basis of these citations, it is clear that the range of applications for such materials is substantial. In this manuscript, we report the immobilization of graphene oxide (GO) onto a fused-silica capillary to form a potential stationary phase for use in open-tubular CEC. We successfully incorporated GO through an in situ condensation reaction with (3-aminopropyl)triethoxysilane after silanization with (3-aminopropyl)triethoxysilane on the inner surface of the capillary. This GO-incorporated capillary was then characterized by use of SEM, infrared spectroscopy, and measurements of EOF. The electrochromatographic features of this stationary phase have also been investigated. Evaluation of acquired data indicates high electrochromatographic resolution and good capillary efficiency. Highly reproducible results between runs, days, and capillaries were also obtained.
由于这些材料具有非凡的特性，目前研究文献中充斥着大量关于石墨烯相关材料的研究。根据这些引文，可以清楚地看出，此类材料的应用范围非常广泛。在本文中，我们报告了将氧化石墨烯（GO）固定在熔融石英毛细管上，形成用于开管 CEC 的潜在固定相。我们通过（3-氨基丙基）三乙氧基硅烷与毛细管内表面的（3-氨基丙基）三乙氧基硅烷进行硅烷化后，用原位缩合反应成功地将 GO 掺入其中。然后通过 SEM、红外光谱和电渗流测量对掺入 GO 的毛细管进行了表征。还研究了这种固定相的电色谱特征。对获得的数据的评估表明，该固定相具有高的电色谱分辨率和好的毛细管效率。还获得了运行之间、天之间和毛细管之间具有高度重现性的结果。
