Layer-by-layer self-assembled graphene oxide/silica microsphere composites as stationary phase for high performance liquid chromatography

CORC > 兰州化学物理研究所 > 中国科学院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

	Layer-by-layer self-assembled graphene oxide/silica microsphere composites as stationary phase for high performance liquid chromatography
	Liang XJ(梁晓静)1,2 ; Liu SJ(刘淑娟)1,2 ; Song XW(宋新旺)3; Zhu YW(祝仰文)3; Jiang SX(蒋生祥)1,2
刊名	Analyst
	2012
卷号	137 期号:22 页码:5237-5244
ISSN号	0003-2654
通讯作者	蒋生祥
英文摘要	Graphene oxide (GO) has been layer-by-layer assembled onto silica microspheres to form a GO/SiO₂ composite stationary phase. All the characterizations of GO/SiO₂ by elemental analysis, Raman spectroscopy and Fourier transformed infrared spectrometry confirmed that with the increase of the assembled layer, GO gradually increases on the silica surface. The chromatographic properties of bare SiO₂ and GO/SiO₂ with different GO assembled layers show that the amount of GO plays an important role in the separation of analytes. Only the appropriate amount of GO on SiO2 can perform a good chromatographic separation. The comparison between chromatographic performances of bare SiO₂ column, GO/SiO₂-2 column and C18 commercial column clearly show that GO/SiO₂-2 and C18 columns obtained a better separation; GO/SiO₂-2 exhibits a large π-electron system and C18 exhibits hydrophobicity. The eluting order, peak width and resolution of analyte on GO/SiO₂-2 column was highly dependent on the size of its π-electron system, while on the C18 column the decisive factor is its hydrophobic property.
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 of China (21105107;20905072;20805052);National Science & Technology Major Project of China (2011ZX05011)
语种	英语
WOS记录号	WOS:000309839400011
公开日期	2013-12-10
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/4625]
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
作者单位	1.Chinese Acad Sci, Lanzhou Inst Chem Phys, Key Lab Chem NW Plant Resources, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Lanzhou Inst Chem Phys, Key Lab Nat Med Gansu Prov, Lanzhou 730000, Peoples R China 3.SINOPEC, Geol & Sci Res Inst Shengli Oilfield, Dongying 257015, Peoples R China
推荐引用方式 GB/T 7714	Liang XJ,Liu SJ,Song XW,et al. Layer-by-layer self-assembled graphene oxide/silica microsphere composites as stationary phase for high performance liquid chromatography[J]. Analyst,2012,137(22):5237-5244.
APA	Liang XJ,Liu SJ,Song XW,Zhu YW,&Jiang SX.(2012).Layer-by-layer self-assembled graphene oxide/silica microsphere composites as stationary phase for high performance liquid chromatography.Analyst,137(22),5237-5244.
MLA	Liang XJ,et al."Layer-by-layer self-assembled graphene oxide/silica microsphere composites as stationary phase for high performance liquid chromatography".Analyst 137.22(2012):5237-5244.