ANALYSIS OF BIOMOLECULES USING TIME-OF-FLIGHT MASS SPECTROMETRY

申请公布号：EP0827629(A1)

申请号：EP19960914683

申请日期：1996.05.17

申请公布日期：1998.03.11

申请人：

PERSEPTIVE BIOSYSTEMS, INC.

发明人：VESTAL, MARVIN, L.;JUHASZ, PETER

分类号：G01N27/62;G01N33/483;H01J49/16;H01J49/40

主分类号：G01N27/62

摘要：A time-of-flight mass spectrometer for measuring the mass-to-charge ratio of a sample molecule is described. The spectrometer provides independent control of the electric field experienced by the sample before and during ion extraction. Methods of mass spectrometry utilizing the principles of this invention reduce matrix background, induce fast fragmentation, and control the transfer of energy prior to ion extraction. <IMAGE>

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