Drs. Wei Tian & Yanhui Chen Sep-Dec. 2014. Main Content General Introduction of Mass spectrometry (MS) Time of Flight Mass Spectrum （ TOF-MS ） (Key point)

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Presentation transcript:

Drs. Wei Tian & Yanhui Chen Sep-Dec. 2014

Main Content General Introduction of Mass spectrometry (MS) Time of Flight Mass Spectrum （ TOF-MS ） (Key point)

Function Injection system Ion source Mass analyzer DetectorRecord

If the molecular weight of one organic compounds is odd, it contain an odd number N If the molecular weight of one organic compounds is even, it contain an even number N Molecular ion peak often appears in the highest position of (m/z) ， except the situation of existing isotopic ion peaks On the left of molecular ion peak, there is no peak in the range of 3-14 atomic mass units

(1) Determine the terminal group (2) Characterize copolymers (3) Investigate the reaction mechanism Function

Description Macromolecules 2009, 42,

Acknowledgement Wei Tian thanks for the help and source materials from graduate students of Applied Chemistry Department of School of Science.