Application of mass-analysed ion kinetic energy spectrometry (MIKES) to the determination of the structures of unknown compounds

The Analyst ◽  
1978 ◽  
Vol 103 (1227) ◽  
pp. 613 ◽  
Author(s):  
M. H. Bozorgzadeh ◽  
R. P. Morgan ◽  
J. H. Beynon
Keyword(s):  
Kinetic Energy ◽  
Ion Kinetic Energy

Determination of trapped-ion kinetic energy by the time-of-flight method for free ejected ions

1995 ◽  
Vol 51 (3) ◽  
pp. 2294-2300 ◽  
Author(s):  
M. Vedel ◽  
M. Knoop ◽  
D. Lunney ◽  
I. Rebatel ◽  
F. Vedel
Keyword(s):  
Kinetic Energy ◽  
Time Of Flight ◽  
Trapped Ion ◽  
Ion Kinetic Energy ◽  
Time Of Flight Method

The determination of ring junction stereochemistry in steroids using mass-analysed ion kinetic energy spectrometry

Tetrahedron ◽  
1981 ◽  
Vol 37 (15) ◽  
pp. 2625-2632 ◽  
Author(s):  
E.A. Larka ◽  
I. Howe ◽  
J.H. Beynon ◽  
Z.V.I. Zaretskii
Keyword(s):  
Kinetic Energy ◽  
Ring Junction ◽  
Ion Kinetic Energy

Ion Kinetic Energy Determinations in Radio-Frequency Glow Discharge Mass Spectrometry

1995 ◽  
Vol 49 (7) ◽  
pp. 917-926 ◽  
Author(s):  
Paula R. Cable ◽  
R. Kenneth Marcus
Keyword(s):  
Kinetic Energy ◽  
Glow Discharge ◽  
Radio Frequency ◽  
Source Region ◽  
Potential Method ◽  
Operating Conditions ◽  
Atmospheric Plasma ◽  
Radio Frequency Glow Discharge ◽  
Ion Trajectory ◽  
Ion Kinetic Energy

Radio-frequency glow discharge (rf-GD) sources produce an abundance of both atoms and ions. For the mass spectrometric application of the glow discharge technique, knowledge of the ion kinetic energies is required to optimize extraction and focusing of ions from the source region into the analyzer. This paper details kinetic energies experimentally determined with the use of the “retarding potential” method. For this study, the analyzer quadrupole of a double-quadrupole mass spectrometer was positively biased to act as a repeller. Ion kinetic energies (IKEs) determined for a variety of discharge and analyzer operating conditions ranged from 12.5 eV to 25.0 eV for 63Cu+. Kinetic energy measurements were confirmed from ion trajectory simulations and follow closely the experimental values for identical analyzer conditions and initial IKEs. Results of this study indicate that the conditions under which ions are formed (plasma conditions) affect IKEs and energy spreads to a greater extent than analyzer parameter variations. Different from atmospheric plasma sources, IKEs for rf-GD species do not vary as a function of ion mass/identity. Evidence is also given in support of a slight mass biasing owing to the transmission properties of double-quadrupole analyzers. The findings detailed herein demonstrate the effects of rf modulation on both ion kinetic energy values and distributions.

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