ICCAS OpenIR
Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry studies of low molecular weight dendrimers
Zhao, ZW; Xiong, SX; Liu, XW; Xin, B; Wang, GH
2003
Source PublicationEUROPEAN JOURNAL OF MASS SPECTROMETRY
ISSN1469-0667
Volume9Issue:3Pages:203-211
AbstractWe report the application of matrix-assisted laser desorption/ionization time-of-flight (MALDI-ToF) mass spectrometry, with delayed extraction in the reflectron mode, for the characterization of low molecular weight dendrimers. 20 dendrimer samples were measured and 4 typical dendrimers, as examples, are discussed in detail. Several factors that affect the analysis including the matrices used, the concentrations of sample, the solvents and cationization reagent used, were investigated in detail. Experimental results indicate that the type of solvent can greatly influence exact mass measurement. However, sample preparation is generally not very critical for dendrimer analysis using MALDI-ToF since many kinds of matrices and a wide range of sample concentrations can be used efficiently. In addition, the Cs+ ion can be used to enhance the efficiency of cationization. Some reasons for this behavior are discussed on the basis of results of calculations using Gaussian94 software (a connected system of programs for performing a variety of semi-empirical and ab initio molecular orbital (MO) calculations).
KeywordMatrix-assisted Laser Desorption/ionization Time-of-flight Mass Spectrometry Dendrimer Dendrimer Characterization
DOI10.1255/ejms.547
Indexed BySCI
Language英语
WOS IDWOS:000185033200006
PublisherIM PUBLICATIONS
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/79872
Collection中国科学院化学研究所
Corresponding AuthorXiong, SX
AffiliationChinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing Mass Spect Ctr, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Zhao, ZW,Xiong, SX,Liu, XW,et al. Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry studies of low molecular weight dendrimers[J]. EUROPEAN JOURNAL OF MASS SPECTROMETRY,2003,9(3):203-211.
APA Zhao, ZW,Xiong, SX,Liu, XW,Xin, B,&Wang, GH.(2003).Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry studies of low molecular weight dendrimers.EUROPEAN JOURNAL OF MASS SPECTROMETRY,9(3),203-211.
MLA Zhao, ZW,et al."Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry studies of low molecular weight dendrimers".EUROPEAN JOURNAL OF MASS SPECTROMETRY 9.3(2003):203-211.
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