Optimization of Performance of Toroidal Ion Trap with Trianglar Electrode by Theoretical Simulation

Yang, Haiyang; Xu, Chongsheng; Yue, Lei; Mikhail, Sudakov; Pan, Yuanjiang; Ding, Chuan‐Fan

doi:10.1016/s1872-2040(16)60917-9

Cited by 5 publications

(5 citation statements)

References 19 publications

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“…[2][3][4] Various versions of simplified ion traps (e.g., cylindrical ion trap, 5 rectilinear ion trap (RIT), 6 and triangular-electrode linear ion trap, 7 etc. [8][9][10][11] ) have been proposed and developed to lower the requirements on the mechanical tolerance. In these devices, the Xinming Huo and Dong Chen contributed equally to this work.…”

Section: Introductionmentioning

confidence: 99%

“…For instance, the toroidal ion trap with optimized asymmetric structure has better mass resolution and sensitivity than that with symmetrical geometry. 9,12,13 In fact, using asymmetric structure to create proper components of higher-order field to enhance the mass resolution is effective for different versions of quadrupole devices. [14][15][16][17] Odd-order fields are believed to be the key factors affecting the dipolar resonant excitation.…”

Section: Introductionmentioning

confidence: 99%

“…Among all the mass analyzers, ion trap is one of the most popular choices to build a miniature MS system because of its built‐in simple structure and high tolerance to operation pressure, as well as the inherent MS/MS capabilities 2–4 . Various versions of simplified ion traps (e.g., cylindrical ion trap, 5 rectilinear ion trap (RIT), 6 and triangular‐electrode linear ion trap, 7 etc 8–11 …”

Section: Introductionmentioning

confidence: 99%

“…In recent years, the insistence on constructing symmetric ion traps gradually became loose, because the introduction of some asymmetric components is found to be beneficial to the performance. For instance, the toroidal ion trap with optimized asymmetric structure has better mass resolution and sensitivity than that with symmetrical geometry 9,12,13 . In fact, using asymmetric structure to create proper components of higher‐order field to enhance the mass resolution is effective for different versions of quadrupole devices 14–17 .…”

Section: Introductionmentioning

confidence: 99%

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Asymmetric rectilinear ion trap with unidirectional ion ejection capability

et al. 2020

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In this paper, the shapes of the electrodes are modified based on a rectilinear ion trap to achieve unidirectional ejection of ions. The designed asymmetric rectilinear ion trap (ARIT) analyzer adds convex and concave circular structures with a height of 0.5 mm on the two X-electrodes, so that the electric field center of the ion trap is inclined to the concave side. The electric field lines of the convex side are compressed to the concave side. Both simulations and experimental results show that ions are more likely to emit from the slit on the concave side plate when performing ion resonance ejection. The mass spectrum signal intensity can reach more than twice that of the original rectilinear trap when using only one detector. Calculations of the electric field components in the trap show that the even-order higher field proportion in the ion trap has not been significantly affected. Combined with the experimental test results, the study further confirmed that the developed ARIT has no significant loss in mass resolution, tandem mass spectrometry capability, and quantitative analysis capability. The proposed asymmetric structure modification scheme can achieve single-side ejection without significantly affecting other performances of the analyzer, which provides a new idea for the structural optimization of the subsequent ion trap analyzers.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Asymmetric rectilinear ion trap with unidirectional ion ejection capability

et al. 2020

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“…Simulation results showed that there are more quadrupole field components and less higher-order fields compared with those in other simplified ion traps; therefore, the TeLIT has good ion storage and mass analysis capabilities, achieving a mass resolution of over 1500 at m/z = 609 Th with a scan rate of 1307 Th/s. Yang Haiyang et al25 reported a toroidal ion trap mass analyzer with triangular electrodes, which was a combination of TeLIT and a circular electrode ion trap, and a mass resolution of 1468 at m/ z = 609 was finally achieved. Yao et al26 analyzed ion trajectories and mass peaks of TeLIT with different ratios of field radius by simulation.It was shown that the optimum mass resolution of 8387 was achieved for ions at m/z = 1892 Th with a scan rate of 1500 Th/s.…”

mentioning

confidence: 99%

Research on double resonant excitation in a triangular electrode ion trap with asymmetric geometry

Zhu,

Xu,

Qiu

et al. 2024

Rapid Comm Mass Spectrometry

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RationaleThe triangular electrode linear ion trap with asymmetric geometry has been reported to possess a high ion unidirectional ejection efficiency and a reasonable mass resolution. To further improve its performance, a double resonant excitation method involving a dipolar and a quadrupolar resonant excitation was applied here.MethodsThe dipolar excitation method was carried out by applying a supplementary alternating voltage out of phase to one pair of the electrodes, whereas the quadrupolar excitation (QE) method was carried out by adding a supplementary alternating voltage in phase to another pair of electrodes. Numerical simulations were performed to explore the impact of the frequency difference between the alternating current (AC) and the QE voltage (∆ω), the frequency of the AC voltage (ωAC), and the QE voltage amplitude (VQE).ResultsThe mass resolution could be improved to ~4700 , which was approximately twice compared to that with only dipolar resonant excitation, and the ion unidirectional ejection efficiency could be improved to 97%. Even with a high scan rate of 6000 Da/s, there was minimal loss of mass resolution caused by increased scan rate in double resonant excitation mode.ConclusionsBy employing the double resonant excitation method, the mass resolution could be further increased while maintaining a considerably high ion unidirectional ejection efficiency, which might be a simple and practical approach for developing a high‐performance miniature ion trap mass analyzer.

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Chaotic motion of single ions in a toroidal ion trap mass analyzer

Higgs

Austin

2017

International Journal of Mass Spectrometry

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Optimization of Performance of Toroidal Ion Trap with Trianglar Electrode by Theoretical Simulation

Cited by 5 publications

References 19 publications

Asymmetric rectilinear ion trap with unidirectional ion ejection capability

Asymmetric rectilinear ion trap with unidirectional ion ejection capability

Research on double resonant excitation in a triangular electrode ion trap with asymmetric geometry

Chaotic motion of single ions in a toroidal ion trap mass analyzer

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