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Desorption-ionization mass spectrometry with porous silica gel and its derivatives as matrix
Zhang, QC; Zou, HF; Guo, Z; Chen, XM; Jiang, HH; Ni, JY
关键词Silica Gel Matrix Desorption-ionization Mass Spectrometry Immobilization Of Matrix Small Molecule Analysis
刊名CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
2001-10-01
22期:10页:1637-1640
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Multidisciplinary
研究领域[WOS]Chemistry
英文摘要Porous silica gel and its derivatives have been applied as matrix for the analysis of small molecules. In contrast to the conventional MALDI-TOF MS, the signal interference of low-molecular analytes by the matrix has been eliminated in the MALDI-TOF MS with porous silica gel and its derivatives as the matrix. The detection of limit by this method reached the fetomole levels, and almost no fragment of the analytes has been observed. The porous structure of silica gel is essential for effective desorption and ionization of the analytes. Among several different types of silica gel, the silica gel with the pore size of 30 nm gives the best signal. The analyte penetration into the pore is very important. Matrix agents of DHB and CCA have been covalently bound to silica gel for the improvement of the intensity of the spectrum signal.
语种英语
WOS记录号WOS:000172051000007
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/138992
专题中国科学院大连化学物理研究所
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, Natl Chromatog Res & Analyt Ctr, Dalian 116011, Peoples R China
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GB/T 7714
Zhang, QC,Zou, HF,Guo, Z,et al. Desorption-ionization mass spectrometry with porous silica gel and its derivatives as matrix[J]. CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,2001,22(10):1637-1640.
APA Zhang, QC,Zou, HF,Guo, Z,Chen, XM,Jiang, HH,&Ni, JY.(2001).Desorption-ionization mass spectrometry with porous silica gel and its derivatives as matrix.CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,22(10),1637-1640.
MLA Zhang, QC,et al."Desorption-ionization mass spectrometry with porous silica gel and its derivatives as matrix".CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE 22.10(2001):1637-1640.
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