Zobrazeno 1 - 10
of 50
pro vyhledávání: '"N. V. Konenkov"'
Publikováno v:
Vestnik of Ryazan State Radio Engineering University. 73:154-160
Publikováno v:
European Journal of Mass Spectrometry. 26:78-87
Quadrupole mass filters are normally operated as narrow band pass filters by appropriate choices of rf and DC voltages corresponding to Mathieu a and q values near the apex of the first stability region. We add an auxiliary quadrupole excitation pote
Publikováno v:
NAUCHNOE PRIBOROSTROENIE. 29:126-134
Methodological Problems in the Replacement of Discrete Mass Spectrometric Models by Continuum Models
Publikováno v:
Journal of Analytical Chemistry. 73:1229-1241
Two problems of mass spectrometry, namely, involving the model of chemical kinetics of cluster formation and the model of the pseudopotential of stroboscopic samples of coordinates and ion velocities in quadrupole radio frequency fields, are consider
Publikováno v:
Journal of Analytical Chemistry. 73:1343-1346
Mass peaks are calculated using the numerical simulation of ion trajectories in the linear quadrupole with the dipole excitation(s). Using this data, diagrams for transmission versus resolution are calculated both for the ideal quadrupole field and f
Publikováno v:
Journal of mass spectrometry : JMSREFERENCES. 55(10)
In this work, the parametric quadrupole resonance caused by the phase modulation of waveform potential is studied. Based on analytical and numerical description of the ion motion in the quadrupole mass filter with the phase modulation, a stability is
Publikováno v:
European Journal of Mass Spectrometry. 24:315-321
Increase in quadrupole mass filter resolution at separation in narrow band stability island (X-band) formed by biharmonic resonance excitation of ion oscillation is discussed. X-band and the normal working quadrupole mass filter modes are compared at
Publikováno v:
Journal of Mass Spectrometry. 53:109-114
The process of ion resonance dipolar excitation in a linear ion trap by 2 ejection waveforms with close frequencies is studied. The physical mechanism of increasing the resolving power using the ion excitation is a nonlinearity of the electric radio
Publikováno v:
International Journal of Mass Spectrometry. 421:204-223
Pseudopotential models for radio frequency (rf) electric fields are widely used. However, these approximate and sometimes intuitively introduced methods, can sometimes lead to ambiguities and false conclusions. While a classical model works well for
Autor:
N. V. Konenkov, V. B. Almazov
Publikováno v:
Technical Physics. 62:1569-1577
We have proposed an analytical model of a quadrupole mass filter with an additional rf quadrupole (prefilter) at its entry, which is based on the model of a transient field in the region between the edges of the mass filter electrodes and the prefilt