The analytical solution for the optimum voltage on regularizing electrodes of the open dynamically harmonized cell.

Area of Science:

• Analytical Chemistry
• Physical Chemistry
• Spectrometry

Background:

• Fourier transform ion cyclotron resonance (FT-ICR) mass spectrometry offers unparalleled mass accuracy and resolving power.
• The dynamically harmonized cell, responsible for FT-ICR's performance, approximates an ideal hyperbolic trapping potential.
• An open modification of the harmonized cell is advantageous for ultrahigh magnetic fields.

Purpose of the Study:

• To analytically determine the optimal voltage for "regularizing" electrodes in an open FT-ICR cell.
• To improve the hyperbolic nature of the trapping potential within the modified cell.
• To provide a method for enhanced analysis and manufacturing tuning of FT-ICR traps.

Main Methods:

• Analytical solution for the averaged potential within the open harmonized cell.
• Optimization of "regularizing" electrode voltages to achieve a hyperbolic potential.

Main Results:

• An analytical solution for the averaged potential in the open cell was derived.
• Optimal voltages for the "regularizing" electrodes were determined analytically.
• The findings facilitate precise tuning of the FT-ICR trap.

Conclusions:

• Analytical optimization of electrode voltages enhances the performance of open FT-ICR cells.
• This method aids in the precise manufacturing and tuning of FT-ICR mass spectrometers.
• The study contributes to advancing the capabilities of high-resolution mass spectrometry.