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Oxidized carbon nanotubes as matrix for matrix-assisted laser desorption/ionization time-of-flight mass spectrometric analysis of biomolecules
其他题名氧化碳纳米管作为基质用于生物分子的MALDI-TOF MS分析
Ren SF(任士芳); Guo YL(郭寅龙)
2005
发表期刊Rapid Commun. Mass Spectrom.
ISSN0951-4198
卷号19期号:2页码:255-260
摘要Oxidized carbon nanotubes (CNTs), which can form a stable homogeneous suspension in water close to a solution phase, were synthesized and used for matrix-assisted desorption/ionization mass spectrometric (MALDI-MS) analysis of biomolecules. Infrared (IR) spectra, transmission electron microscopy (TEM) and particle size analysis were used for the characterization of the oxidized CNTs. The results indicate that the physical structure of the CNTs was not damaged, but carboxylate groups were introduced onto the surface of the CNTs. In addition, impurities including amorphous carbon, which is one of the main reasons for ion source contamination, were destroyed by the oxidization. The carboxyl groups on the oxidized surface of the CNTs can not only provide an additional proton source, but can also increase the surface polarity and solubility of the CNTs, making it easier to manipulate which is important for MALDI analysis of some biomolecules, especially larger peptides and proteins. The oxidized CNTs were successfully applied to the analysis of neutral oligosaccharides, peptides, and insulin, and thus promise to be an efficient matrix for MALDI-MS analysis of biomolecules. Copyright (C) 2004 John Wiley Sons, Ltd.
学科领域分析化学
部门归属上海有机化学研究所
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收录类别SCI
语种英语
WOS记录号WOS:000226603700025
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文献类型期刊论文
条目标识符http://ir.sioc.ac.cn/handle/331003/19908
专题分析化学研究室
通讯作者Guo YL(郭寅龙)
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Ren SF,Guo YL. Oxidized carbon nanotubes as matrix for matrix-assisted laser desorption/ionization time-of-flight mass spectrometric analysis of biomolecules[J]. Rapid Commun. Mass Spectrom.,2005,19(2):255-260.
APA 任士芳,&郭寅龙.(2005).Oxidized carbon nanotubes as matrix for matrix-assisted laser desorption/ionization time-of-flight mass spectrometric analysis of biomolecules.Rapid Commun. Mass Spectrom.,19(2),255-260.
MLA 任士芳,et al."Oxidized carbon nanotubes as matrix for matrix-assisted laser desorption/ionization time-of-flight mass spectrometric analysis of biomolecules".Rapid Commun. Mass Spectrom. 19.2(2005):255-260.
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