Analytical Solution for the Electric Field Inside Dynamically Harmonized FT-ICR Cell

Lioznov, Anton; Baykut, Gökhan; Nikolaev, Evgeny N.

doi:10.1007/s13361-018-2121-9

Cited by 6 publications

(11 citation statements)

References 9 publications

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“…And in Lioznov et al (2019), the solution for nonaveraged potential was found as well. It is not absolutely strict, but approximate the potential distribution with high accuracy in the whole working volume The dynamic harmonization method was also implemented in the so-called "window" cell (Tolmachev et al, 2012).…”

Section: Traps Without An Electric Field Insidementioning

confidence: 74%

Section: Dynamically Harmonized Cellmentioning

confidence: 74%

“…3.11.1 | Described in Boldin and Nikolaev (2011), Kostyukevich et al (2012), and Lioznov et al (2019) The last trap that we will describe in detail, uses a new principle to prevent comet formation. The main idea is to make the potential harmonized not statically (like in compensated traps), but dynamically, by averaging over the cyclotron motion.…”

Section: Dynamically Harmonized Cellmentioning

confidence: 99%

“…Dynamically harmonized cell 3.11.1 | Described inBoldin and Nikolaev (2011),Kostyukevich et al (2012), andLioznov et al (2019) …”

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confidence: 99%

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Evaluation of major historical ICR cell designs using electric field simulations

Nikolaev

Lioznov

2020

Mass Spectrometry Reviews

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In Fourier-transform ion cyclotron resonance mass spectrometry, ions are detected by measuring image current induced in the detecting electrodes by trapped ions rotating in a magnetic field at their cyclotron frequencies. The ion trap used for this purpose is called the Penning trap. It can have various configurations of electrodes that are used to create a trapping electric field, to excite cyclotron motion, and to detect the induced signal. The evolution of this type of mass spectrometry is mainly driven by progress in the technology of superconducting magnets and in the constantly improved design of the ion cyclotron resonance (ICR) measuring cell. In this review, we focus on ICR cell designs. We consider that the driving forces of this evolution are the desire to increase resolution, mass accuracy and dynamic range, as well as to adapt new methods for creating and trapping ions.

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Section: Traps Without An Electric Field Insidementioning

confidence: 74%

Section: Dynamically Harmonized Cellmentioning

confidence: 74%

Section: Dynamically Harmonized Cellmentioning

confidence: 99%

“…Dynamically harmonized cell 3.11.1 | Described inBoldin and Nikolaev (2011),Kostyukevich et al (2012), andLioznov et al (2019) …”

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confidence: 99%

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Evaluation of major historical ICR cell designs using electric field simulations

Nikolaev

Lioznov

2020

Mass Spectrometry Reviews

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“…2 A dynamically harmonized FT ICR cell has a saddle-like hyperbolic electric potential distribution 2z 2 − r 2 after averaging it over cyclotron motion trajectory. 1,3 Here r is radial, and z axial (along magnetic field) coordinates with z = 0 in the center of the trap. Such a field distribution makes the ion motion along the magnetic field independent of the motion in the x, y-plane and the cyclotron motion independent of the magnetron motion.…”

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confidence: 99%

How to Increase Further the Resolving Power of the Ultrahigh Magnetic Field FT ICR Instruments? The New Concept of the FT ICR Cell–the Open Dynamically Harmonized Cell as a Part of the Vacuum System Wall

Nikolaev

Lioznov

2020

Anal. Chem.

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FT ICR mass spectrometry continues to be the leader in the resolving power among all mass spectrometry methods. With the introduction of the dynamically harmonized FT ICR cell, it has become possible to achieve the resolving power of more than 10 million at m/q = 1000 with moderate magnetic fields of about 7 T. A further increase in the mass resolving power is desirable mainly for two reasons: with this we are increasing the number of resolved components in analyses of complex mixtures (like oil and natural organic matter (NOM)) and increasing the number of the mass of molecules for which a fine structure can be resolved. In recent years, some attempts have been made to further increase the mass resolving power by increasing the magnetic field and using the multielectrode detection method. An increase in the magnetic field to 21 T did not show a proportional increase in the mass resolving power. Likely, the reason for this is an insufficiently high vacuum to satisfy the requirement of an increase in the mean free path of ions with the increasing magnetic field power. We offer a new design for the FT ICR cell and the whole mass spectrometer, in which an open, dynamically harmonized FT ICR cell is integrated into a vacuum system with the outer surfaces of the cell electrodes at atmospheric pressure. In this design, the trap electrodes are the walls of the vacuum system and have the minimized active surfaces by combining the vacuum system surface and the cell surface into one. In this design, the pumping process is accelerated, and the factor of insufficient vacuum in FT ICR mass spectrometers with an ultrahigh magnetic field is eliminated.

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Instrumentation at the Leading Edge of Proteomics

Peters-Clarke,

Coon,

Riley

2024

Anal. Chem.

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Analytical Solution for the Electric Field Inside Dynamically Harmonized FT-ICR Cell

Cited by 6 publications

References 9 publications

Evaluation of major historical ICR cell designs using electric field simulations

Evaluation of major historical ICR cell designs using electric field simulations

How to Increase Further the Resolving Power of the Ultrahigh Magnetic Field FT ICR Instruments? The New Concept of the FT ICR Cell–the Open Dynamically Harmonized Cell as a Part of the Vacuum System Wall

Instrumentation at the Leading Edge of Proteomics

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