scholarly journals Negative ion-atmospheric pressure photoionization: Electron capture, dissociative electron capture, proton transfer, and anion attachment

2007 ◽  
Vol 18 (10) ◽  
pp. 1789-1798 ◽  
Author(s):  
Liguo Song ◽  
Amber D. Wellman ◽  
Huifang Yao ◽  
John E. Bartmess
Keyword(s):  
Proton Transfer ◽  
Electron Capture ◽  
Atmospheric Pressure ◽  
Dissociative Electron Capture ◽  
Negative Ion ◽  
Atmospheric Pressure Photoionization ◽  
Anion Attachment

Analysis of Indigo-type compounds in natural dyes by negative ion atmospheric pressure photoionization mass spectrometry

2012 ◽  
Vol 92 (3) ◽  
pp. 1192-1198 ◽  
Author(s):  
Malvina Papanastasiou ◽  
Norman S. Allen ◽  
Adam McMahon ◽  
Ludwig C.A. Naegel ◽  
Michele Edge ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Atmospheric Pressure ◽  
Natural Dyes ◽  
Negative Ion ◽  
Atmospheric Pressure Photoionization ◽  
Photoionization Mass Spectrometry

Negative Ionen durch Elektronenstoß an einigen organischen Schwefelverbindungen

1966 ◽  
Vol 21 (8) ◽  
pp. 1251-1259 ◽  
Author(s):  
K. Jäger ◽  
A. Henglein
Keyword(s):  
Electron Impact ◽  
Electron Capture ◽  
Chemical Reactions ◽  
Hydrogen Sulphide ◽  
Negative Ions ◽  
Ion Source ◽  
Ionization Efficiency ◽  
Dissociative Electron Capture ◽  
Negative Ion ◽  
Electron Affinities

Negative ion formation by electron impact has been studied in hydrogen sulphide, methylmercaptan, phenylmercaptan, benzylmercaptan, allylmercaptan, dimethylthioether, dimethyldisulphide and diallyldisulpbide. Appearance potentials, ionization efficiency curves and the kinetic energies of negative ions were measured by using a Fox ion source. The energies of various dissociative electron capture processses are discussed and electron affinities of some radicals of the types RS and RS2 are derived. Two chemical reactions of the CH2S- ion with dimethyldisulphide have been detected.

Characterization of polyalphaolefins using halogen anion attachment in atmospheric pressure photoionization coupled with ion mobility spectrometry-mass spectrometry

The Analyst ◽  
2018 ◽  
Vol 143 (16) ◽  
pp. 3934-3940 ◽  
Author(s):  
Anna Luiza Mendes Siqueira ◽  
Mathieu Beaumesnil ◽  
Marie Hubert-Roux ◽  
Corinne Loutelier-Bourhis ◽  
Carlos Afonso ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Ion Mobility Spectrometry ◽  
Ion Mobility ◽  
Atmospheric Pressure ◽  
Atmospheric Pressure Photoionization ◽  
Halogen Anion ◽  
Alpha Olefin ◽  
Anion Attachment

Polyalphaolefins are saturated alpha olefin oligomers efficiently ionized by APPI.

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