Multi-mode application of graphene quantum dots bonded silica stationary phase for high performance liquid chromatography
Wu Q(武琪)1,2; Sun YM(孙亚明)1,2; Zhang XL(张晓莉)1,2; Zhang X(张霞)1; Dong SQ(董树清)1; Qiu HD(邱洪灯)1; Wang LT(王利涛)1; Zhao L(赵亮)1; Wang LT(王利涛); Zhao L(赵亮)
刊名Journal of Chromatography A
2017
卷号1492页码:61-69
关键词Stationary phases Graphene quantum dots Multiple retention interactions Hydrophilic interaction chromatography
ISSN号0021-9673
通讯作者王利涛 ; 赵亮
英文摘要

Graphene quantum dots (GQDs), which possess hydrophobic, hydrophilic, π-π stacking and hydrogen bonding properties, have great prospect in HPLC. In this study, a novel GQDs bonded silica stationary phase was prepared and applied in multiple separation modes including normal phase, reversed phase and hydrophilic chromatography mode. Alkaloids, nucleosides and nucleobases were chosen as test compounds to evaluate the separation performance of this column in hydrophilic chromatographic mode. The tested polar compounds achieved baseline separation and the resolutions reached 2.32, 4.62, 7.79, 1.68 for thymidine, uridine, adenosine, cytidine and guanosine. This new column showed satisfactory chromatographic performance for anilines, phenols and polycyclic aromatic hydrocarbons in normal and reversed phase mode. Five anilines were completely separated within 10 min under the condition of mobile phase containing only 10% methanol. The effect of water content, buffer concentration and pH on chromatographic separation was further investigated, founding that this new stationary phase showed a complex retention mechanism of partitioning, adsorption and electrostatic interaction in hydrophilic chromatography mode, and the multiple retention interactions such as π-π stacking and π-π electron-donor-acceptor interaction played an important role during the separation process. This GQDs bonded column, which allows us to adjust appropriate chromatography mode according to the properties of analytes, has possibility in actual application after further research.

学科主题分析化学与药物化学
收录类别SCI
资助信息the National Natural Science Foundation (Nos. 21405162;21405161;20675085);the Key Projects of Urumqi Science and Technology Bureau (Y141320007);the top priority program of “One-Three-Five” Strategic Planning of Lanzhou Institute of Chemical Physics, CAS
语种英语
WOS记录号WOS:000398646300008
内容类型期刊论文
源URL[http://210.77.64.217/handle/362003/21729]  
专题兰州化学物理研究所_中科院西北特色植物资源化学重点实验室/甘肃省天然药物重点实验室
通讯作者Wang LT(王利涛); Zhao L(赵亮)
作者单位1.Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
2.University of Chinese Academy of Sciences, Beijing 100039, China
推荐引用方式
GB/T 7714
Wu Q,Sun YM,Zhang XL,et al. Multi-mode application of graphene quantum dots bonded silica stationary phase for high performance liquid chromatography[J]. Journal of Chromatography A,2017,1492:61-69.
APA Wu Q.,Sun YM.,Zhang XL.,Zhang X.,Dong SQ.,...&赵亮.(2017).Multi-mode application of graphene quantum dots bonded silica stationary phase for high performance liquid chromatography.Journal of Chromatography A,1492,61-69.
MLA Wu Q,et al."Multi-mode application of graphene quantum dots bonded silica stationary phase for high performance liquid chromatography".Journal of Chromatography A 1492(2017):61-69.
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