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题名: Carbon nanotubes as assisted matrix for laser desorption/ionization time-of-flight mass spectrometry
作者: Xu, SY;  Li, YF;  Zou, HF;  Qiu, JS;  Guo, Z;  Guo, BC
刊名: ANALYTICAL CHEMISTRY
发表日期: 2003-11-15
DOI: 10.1021/ac0345695
卷: 75, 期:22, 页:6191-6195
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Analytical
研究领域[WOS]: Chemistry
英文摘要: Analysis of low molecular weight compounds with matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOFMS) has been developed by using carbon nanotubes obtained from coal by arc discharge as the matrix. The carbon nanotube matrix functions as substrate to trap analytes of peptides, organic compounds, and beta-cyclodextrin deposited on its surface. It has been found that carbon nanotubes can transfer energy to the analyte under laser irradiation, which makes analytes well desorbed/ionized, and the interference of intrinsic matrix ions can be eliminated. At the same time, the fragmentation of the analyte can be avoided. A good sensitivity and excellent reproducibility of the spectrum signals are achieved. It is believed that this work not only will open a new field for applications of carbon nanotubes, but also will offer a new technique for high-speed analysis of low molecular weight compounds in areas such as metabolism research and characterization of natural products.
关键词[WOS]: POROUS SILICON ;  SURFACE ;  MOLECULES ;  PEPTIDES ;  PROTEINS ;  FILMS
语种: 英语
WOS记录号: WOS:000186601500023
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/138305
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Natl Chromatog R&A Ctr, Dalian 116011, Peoples R China
2.Dalian Univ Technol, Dept Mat Sci & Chem Engn, State Key Lab Mat Modificat, Dalian 116012, Peoples R China
3.Dalian Univ Technol, Dept Mat Sci & Chem Engn, Carbon Res Lab, Dalian 116012, Peoples R China
4.Cleveland State Univ, Dept Chem, Cleveland, OH 44115 USA

Recommended Citation:
Xu, SY,Li, YF,Zou, HF,et al. Carbon nanotubes as assisted matrix for laser desorption/ionization time-of-flight mass spectrometry[J]. ANALYTICAL CHEMISTRY,2003,75(22):6191-6195.
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