Carbon nanoparticles from corn stalk soot and its novel application as stationary phase of hydrophilic interaction chromatography and per aqueous liquid chromatography

被引：54
作者：
Li, Yuanyuan [1 ,2 ]
Xu, Luan [1 ]
Chen, Tong [1 ]
Liu, Xiaoyan [1 ]
Xu, Zhigang [1 ]
Zhang, Haixia [1 ]
机构：
[1] Lanzhou Univ, Key Lab Nonferrous Met Chem & Resources Utilizat, Lanzhou 730000, Peoples R China
[2] Ningxia Univ, Key Lab Energy & Chem Engn, Yinchuan 750021, Peoples R China
来源：
ANALYTICA CHIMICA ACTA | 2012年 / 726卷
基金：
中国国家自然科学基金;
关键词：
Carbon nanoparticles; Carbon structure; Stationary phase; Hydrophilic interaction liquid chromatography; Per aqueous liquid chromatography; GAS-CHROMATOGRAPHY; HYDROGEN STORAGE; HIGHLY POLAR; NANOTUBES; SEPARATION; PERFORMANCE; RETENTION; WATER; NANOCRYSTALS; MEMBRANE;
D O I：
10.1016/j.aca.2012.03.032
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Carbon nanoparticles (CNPs) (6-18 nm in size) were prepared by refluxing corn stalk soot in nitric acid. The obtained acid-oxidized CNPs are soluble in water due to the existence of carboxylic and hydroxyl groups. C-13 NMR measurement shows the CNPs are mainly of sp(2) and sp(3) carbon structure different from CNPs obtained from candle soot and natural gas soot. Furthermore, these CNPs exhibit unique photoluminescence properties. Interestingly, the CNPs might be exploited to immobilize on the surface of porous silica particles as chromatographic stationary phase. The resultant packing material was evaluated by high-performance liquid chromatography, indicating that the new stationary phase could be used in hydrophilic interaction liquid chromatography(HILIC) and per aqueous liquid chromatography (PALC) modes. The separation of five nucleosides, four sulfa compounds and safflower injection was achieved by using the new column in the HILIC and PALC modes, respectively. (c) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：102 / 108
页数：7
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