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Open-tubular capillary electrochromatography using a capillary coated with octadecylamine-capped gold nanoparticles
Qu, Qishu1,2; Zhang, Xinxin1; Shen, Ming1; Liu, Yin1; Hu, Xiaoya1; Yang, Gongjun1; Wang, Chengyin1; Zhang, Yukui2; Yan, Chao2,3
KeywordGold Nanoparticle Octaclecylamine Open-tubular Capillary Electrochromatography
Source PublicationELECTROPHORESIS
2008-02-01
DOI10.1002/elps.200700409
Volume29Issue:4Pages:901-909
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Physical Sciences
WOS SubjectBiochemical Research Methods ; Chemistry, Analytical
WOS Research AreaBiochemistry & Molecular Biology ; Chemistry
WOS KeywordTITANIUM-DIOXIDE NANOPARTICLES ; ADSORBED STATIONARY PHASES ; DOUBLE-STRANDED DNA ; ELECTROKINETIC CHROMATOGRAPHY ; ELECTROOSMOTIC FLOW ; PSEUDOSTATIONARY PHASE ; LIQUID-CHROMATOGRAPHY ; SILICA NANOPARTICLES ; COLUMN EFFICIENCY ; SEPARATION
Abstractoctadecylamine-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.
Language英语
WOS IDWOS:000253575200019
Citation statistics
Cited Times:37[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/140943
Collection中国科学院大连化学物理研究所
Affiliation1.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
Recommended Citation
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.
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