Charge exchange mass spectra of some C5H10 isomers

Yip Hoi Li; Jan A. Herman; Alex. G. Harrison

doi:10.1139/v81-263

Charge exchange mass spectra of some C5H10 isomers

Canadian Journal of Chemistry ◽

10.1139/v81-263 ◽

1981 ◽

Vol 59 (12) ◽

pp. 1753-1759 ◽

Cited By ~ 40

Author(s):

Yip Hoi Li ◽

Jan A. Herman ◽

Alex. G. Harrison

Keyword(s):

Electron Impact ◽

Charge Exchange ◽

Mass Spectra ◽

Chemical Ionization ◽

Relative Energy ◽

Ionization Mass ◽

Single Source ◽

Fragmentation Pathways ◽

Electron Impact Mass ◽

Impact Mass

Reagent gas systems are described for use in a single-source chemical ionization mass spectrometer which permit charge exchange mass spectra to be obtained using CS2+•(∼10.2 eV), COS+•(11.2 eV), Xe+•(∼12.5 eV), CO+•(14.0 eV), N2+•(15.3 eV), and Ar+• (15.8 eV) (recombination energies in brackets) as the major reactant ions. Using these reagent gas systems the charge exchange mass spectra of cyclopentane, 1-pentene, 3-methyl-l-butene, 2-methyl-l-butene, 2-pentene, and 2-methyl-2-butene have been obtained. It is shown that these spectra can be used to construct breakdown graphs which adequately depict the relative energy dependences of the fragmentation pathways and rationalize the 70 eV electron impact mass spectra.

Simulation of electron impact mass spectra by charge exchange in chemical ionization mass spectrometry

Analytical Chemistry ◽

10.1021/ac00271a013 ◽

1984 ◽

Vol 56 (7) ◽

pp. 1111-1114 ◽

Cited By ~ 17

Author(s):

Donald F. Hunt ◽

P. Jane. Gale

Keyword(s):

Mass Spectrometry ◽

Electron Impact ◽

Charge Exchange ◽

Mass Spectra ◽

Chemical Ionization ◽

Ionization Mass Spectrometry ◽

Chemical Ionization Mass Spectrometry ◽

Ionization Mass ◽

Electron Impact Mass ◽

Impact Mass

Chemical ionization and electron impact mass spectra of alicyclic substituted 2-aryl-1,3-dithianes

Organic Mass Spectrometry ◽

10.1002/oms.1210151003 ◽

1980 ◽

Vol 15 (10) ◽

pp. 502-504 ◽

Cited By ~ 5

Author(s):

Charles J. Shaw ◽

Vinayak V. Kane

Keyword(s):

Electron Impact ◽

Mass Spectra ◽

Chemical Ionization ◽

Electron Impact Mass ◽

Impact Mass

Characterization of diastereomeric and enantiomeric ephedrines by gas chromatography combined with electron impact mass spectrometry and isobutane chemical ionization mass spectrometry

Biological Mass Spectrometry ◽

10.1002/bms.1200040407 ◽

1977 ◽

Vol 4 (4) ◽

pp. 226-231 ◽

Cited By ~ 14

Author(s):

Mary T. Gilbert ◽

Charles J. W. Brooks

Keyword(s):

Mass Spectrometry ◽

Gas Chromatography ◽

Electron Impact ◽

Chemical Ionization ◽

Chemical Ionization Mass Spectrometry ◽

Ionization Mass ◽

Electron Impact Mass Spectrometry ◽

Electron Impact Mass ◽

Impact Mass

Comparison of the field desorption, chemical ionization and electron impact mass spectra of some steroids

Biological Mass Spectrometry ◽

10.1002/bms.1200010611 ◽

1974 ◽

Vol 1 (6) ◽

pp. 423-424 ◽

Cited By ~ 7

Author(s):

N. J. Haskins ◽

D. E. Games ◽

K. T. Taylor

Keyword(s):

Electron Impact ◽

Mass Spectra ◽

Chemical Ionization ◽

Field Desorption ◽

Desorption Chemical Ionization ◽

Electron Impact Mass ◽

Impact Mass

Electron impact, chemical ionization and negative chemical ionization mass spectra, and mass-analysed ion kinetic energy spectrometry-collision-induced dissociation fragmentation pathways of some deuterated 2,4,6-trinitrotoluene (TNT) derivatives

Organic Mass Spectrometry ◽

10.1002/oms.1210261012 ◽

1991 ◽

Vol 26 (10) ◽

pp. 867-874 ◽

Cited By ~ 10

Author(s):

Jehuda Yinon ◽

Daniel Fraisse ◽

Ian J. Dagley

Keyword(s):

Kinetic Energy ◽

Electron Impact ◽

Mass Spectra ◽

Chemical Ionization ◽

Collision Induced Dissociation ◽

Ionization Mass ◽

Negative Chemical Ionization ◽

Fragmentation Pathways ◽

Ion Kinetic Energy

Chemical ionization and electron impact mass spectra ofN-carbonyldihydrazones of 2,4-diacetylresorcinol

Rapid Communications in Mass Spectrometry ◽

10.1002/rcm.1290090926 ◽

1995 ◽

Vol 9 (9) ◽

pp. 851-853

Author(s):

Antigoni Kotali

Keyword(s):

Electron Impact ◽

Mass Spectra ◽

Chemical Ionization ◽

Electron Impact Mass ◽

Impact Mass

Chemical ionization and electron impact mass spectra of symmetricalS-alkyl alkanesulfonothioates (thiosulfonates)

Organic Mass Spectrometry ◽

10.1002/oms.1210270512 ◽

1992 ◽

Vol 27 (5) ◽

pp. 609-610 ◽

Cited By ~ 1

Author(s):

Fillmore Freeman ◽

Monica C. Keindl

Keyword(s):

Electron Impact ◽

Mass Spectra ◽

Chemical Ionization ◽

Electron Impact Mass ◽

Impact Mass

The Fragment Ion C13H9O2 m/z 197 in the Mass Spectra of 2-(2′-R-phenyl)benzoic Acids

Australian Journal of Chemistry ◽

10.1071/ch9900203 ◽

1990 ◽

Vol 43 (1) ◽

pp. 203 ◽

Cited By ~ 3

Author(s):

RG Gillis ◽

QN Porter

Keyword(s):

Mass Spectrum ◽

Electron Impact ◽

Mass Spectra ◽

Chemical Ionization ◽

Electron Impact Mass Spectrum ◽

Benzoic Acids ◽

Ipso Substitution ◽

Methane Chemical Ionization ◽

Electron Impact Mass ◽

Impact Mass

In the electron impact mass spectrum of 2-(2°-R-phenyl)benzoic acids where R=H, NO2, OCH3, COOH, or Br, an abundant fragment ion m/z 197 is formed by an ipso substitution in which R is expelled as a radical. The structure of the ion m/z 197 has been shown by collision-activated dissociation to be identical with that of the protonated molecule formed by methane chemical ionization of 6H-dibenzo[ b,d ]pyran-6-one.

Chemical Ionization and Electron Impact Mass Spectra of Oligosaccharides Derived from Sphingoglycolipids

The Journal of Biochemistry ◽

10.1093/oxfordjournals.jbchem.a131858 ◽

1977 ◽

Vol 82 (6) ◽

pp. 1623-1631 ◽

Cited By ~ 32

Author(s):

Susumu ANDO ◽

Kazuo KON ◽

Yoshitake NAGAI ◽

Takeshi MURATA

Keyword(s):

Electron Impact ◽

Mass Spectra ◽

Chemical Ionization ◽

Electron Impact Mass ◽

Impact Mass

Oxygen equilibration in the mass spectra of 2-benzoylbenzoic acid

Australian Journal of Chemistry ◽

10.1071/ch9760301 ◽

1976 ◽

Vol 29 (2) ◽

pp. 301

Author(s):

MJ Lacey ◽

JS Shannon

Keyword(s):

Mass Spectrum ◽

Benzoic Acid ◽

Electron Impact ◽

Mass Spectra ◽

Chemical Ionization ◽

Molecular Ions ◽

Electron Impact Mass Spectrum ◽

Primary Fragmentation ◽

Electron Impact Mass ◽

Impact Mass

Positional integrity of the label is maintained in the molecular ions of 2-ben~oyl[18O]benzoic acid prior to a number of primary fragmentation modes. Positional integrity is also evident for some source and metastable reactions of the protonated molecular ions formed in its chemical ionization (H2) mass spectrum. The (M-Ph)+ ions formed in the electron impact mass spectrum, however, fragment further after complete equilibration of their oxygen atoms.