高等学校化学学报 ›› 2001, Vol. 22 ›› Issue (7): 1102.

• 研究快报 • 上一篇    下一篇

α-腈基阿魏酸基体在MALDI-TOFMS测定中的应用研究

邓慧敏, 查庆民, 黎军, 邵伟艳, 赖志辉, 赵善楷   

  1. 中山大学测试中心, 广州 510275
  • 收稿日期:2001-01-18 出版日期:2001-07-24 发布日期:2001-07-24
  • 通讯作者: 邓慧敏(1955年出生),女,副教授,主要从事激光飞行时间质谱研究.E-mail:ceswuq@zsu.edu.cn E-mail:ceswuq@zsu.edu.cn
  • 基金资助:

    国家自然科学基金(批准号:9702-42);广东省自然科学基金(批准号:990209)

Studies of Applications of a New Matrix——α-Cyano Ferulic Acid in MALDI-TOFMS

DENG Hui-Min, ZHA Qing-Min, LI Jun, SHAO Wei-Yan, LAI Zhi-Hui, ZHAO Shan-Kai   

  1. Instrumental Analysis & Reasearch Center, Zhongshan University, Guangzhou 510275, China
  • Received:2001-01-18 Online:2001-07-24 Published:2001-07-24

关键词: &alpha, -腈基阿魏酸, 基体, 基体辅助激光解吸电离飞行时间质谱

Abstract: This paper reports for the first time an experiment designed in which synthesized α-cyano ferulic acid used as a new matrix for the analysis of cytochrome c, trypsin, bovine serum albumin, β-cyclodextrin, dextrans and DNAd(T)18. The results demonstrated that α-cyano ferulic acid used as a new matrix could effectively desorb and ionize different kinds of samples, such as proteins and peptides, oligosaccharides, polysaccharides and oligonucleotides. In analysis of dextrans the new matrix gave better results when comparing with the normally used DHB. In analysis of DNAd(T)18, the sample could be desorbed and ionized more efficiently even withoutsample purification, which is normally needed when using 3-HPAas a matrix.

Key words: Cyano ferulic acid, Matrix, MALDI TOFMS

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