Open-tubular capillary electrochromatography using a capillary coated with octadecylamine-capped gold nanoparticles

	Open-tubular capillary electrochromatography using a capillary coated with octadecylamine-capped gold nanoparticles
	Qu, Qishu 1,2; Zhang, Xinxin 1; Shen, Ming 1; Liu, Yin 1; Hu, Xiaoya 1; Yang, Gongjun 1; Wang, Chengyin 1; Zhang, Yukui 2; Yan, Chao 2,3
刊名	electrophoresis
	2008-02-01
卷号	29 期号:4 页码:901-909
关键词	gold nanoparticle octaclecylamine open-tubular capillary electrochromatography
英文摘要	octadecylamine-capped gold nanoparticles (oda-au-nps) were prepared and characterized by using uv-vis adsorption spectrum, transmission electron chromatography (tem), sem, and ft-ir. a simple but robust hydrophobic coating was easily developed by flushing a capillary with a solution of oda-au-nps, because the positive charges were carried by the nanoparticles which strongly adsorb to the negatively charged inner surface of a fused-silica capillary via electrostatic and hydrophobic interactions. the chromatographic characteristics of the coated capillary was investigated by varying the experimental parameters such as buffer ph, buffer concentration, and percentage of organic modifier in the mobile phase. the results show that (i) resolution between thiourea and naphthalene is almost the same when comparing the electrochromatograms obtained using ph 7 buffer as mobile phase after and before the capillary column was operated using ph 11 and 3 mobile phase; (ii) no significant changes in retention time and deterioration in peak efficiency were found after 60 runs of test aromatic mixtures; and (iii) column efficiency up to 189 000 theoretical plates/meter for testosterone was obtained. all of the results indicated that the coating could act as a stable stationary phase for open tubular cec as well as for bioanalysis.
WOS标题词	science & technology ; life sciences & biomedicine ; physical sciences
类目[WOS]	biochemical research methods ; chemistry, analytical
研究领域[WOS]	biochemistry & molecular biology ; chemistry
关键词[WOS]	titanium-dioxide nanoparticles ; adsorbed stationary phases ; double-stranded dna ; electrokinetic chromatography ; electroosmotic flow ; pseudostationary phase ; liquid-chromatography ; silica nanoparticles ; column efficiency ; separation
收录类别	SCI
语种	英语
WOS记录号	WOS:000253575200019
公开日期	2015-11-17
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/140943]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Yangzhou Univ, Coll Chem & Chem Engn, Jiangsu Key Lab Environm Mat & Environm Engn, Yangzhou 225002, Peoples R China 2.Chinese Acad Sci, Natl Chromatog R&A Ctr, Dalian Inst Chem Phys, Dalian, Peoples R China 3.Shanghai Jiao Tong Univ, Sch Pharm, Shanghai, Peoples R China
推荐引用方式 GB/T 7714	Qu, Qishu,Zhang, Xinxin,Shen, Ming,et al. Open-tubular capillary electrochromatography using a capillary coated with octadecylamine-capped gold nanoparticles[J]. electrophoresis,2008,29(4):901-909.
APA	Qu, Qishu.,Zhang, Xinxin.,Shen, Ming.,Liu, Yin.,Hu, Xiaoya.,...&Yan, Chao.(2008).Open-tubular capillary electrochromatography using a capillary coated with octadecylamine-capped gold nanoparticles.electrophoresis,29(4),901-909.
MLA	Qu, Qishu,et al."Open-tubular capillary electrochromatography using a capillary coated with octadecylamine-capped gold nanoparticles".electrophoresis 29.4(2008):901-909.