Citation: Feng He QIU, Shu Ying LIU. A STUDY OF DOUBLY CHARGED ION MASS SPECTRA(2E SPECTRA) OF BIPHENYL DERIVATIVES[J]. Chinese Chemical Letters, ;1991, 2(5): 397-398. shu

A STUDY OF DOUBLY CHARGED ION MASS SPECTRA(2E SPECTRA) OF BIPHENYL DERIVATIVES

Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022

Received Date: 28 January 1991

Fund Project: support of the Chinese Hational Natural Science Foundation is gratefully adcnovledsed.

The 2E spectra and substituent effects and target gas pressure dependence of the 2E spectra of 7 biphenyl derivatives were discussed. The electron-donating groups favour the molecular ions, but the electron withdrawing groups favour the fragaent ions produced by losing the substituents from molecular ions. The variation of target gas pressure affects the TIC,sample ion current,and the ratio of sample ion current to TIC sharply.However it has no effect on the fragmentation pattern.
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