scholarly journals A Miniature Four-Channel Ion Trap Array Based on Non-silicon MEMS Technology

Micromachines ◽  
2021 ◽  
Vol 12 (7) ◽  
pp. 831
Author(s):  
Qi Zhang ◽  
Xichi Lu ◽  
Ting Chen ◽  
Yu Xiao ◽  
Rujiao Yao ◽  
...  
Keyword(s):  
Mass Spectrometer ◽  
Structural Design ◽  
High Performance ◽  
Extraction Efficiency ◽  
Ion Trap ◽  
Structural Parameters ◽  
Mass Resolution ◽  
Miniature Mass Spectrometer ◽  
Mems Technology ◽  
The Relationship

With the increasing application field, a higher requirement is put forward for the mass spectrometer. The reduction in size will inevitably cause a loss of precision; therefore, it is necessary to develop a high-performance miniature mass spectrometer. Based on the researches of rectangular ion trap, the relationship between mass resolution and structural parameters of the ion trap array was analyzed by further simulation. The results indicate that, considering the balance of mass resolution and extraction efficiency, the preferable values for the field radius of exit direction y0 and ion exit slot width s0 are 1.61 mm and 200 μm, respectively. Afterwards, a miniature four-channel ion trap array (MFITA) was fabricated, by using MEMS and laser etching technology, and mass spectrometry experiments were carried out to demonstrate its performance. The mass resolution of butyl diacetate with m/z = 230 can reach 324. In addition, the consistency of four channels is verified within the error tolerance, by analyzing air samples. Our work can prove the correctness of the structural design and the feasibility of MEMS preparation for MFITA, which will bring meaningful guidance for its future development and optimization.

scholarly journals The LMS-GT instrument – a new perspective for quantification with the LIMS-TOF measurement technique

2019 ◽  
Vol 34 (10) ◽  
pp. 2061-2073 ◽  
Author(s):  
Reto Wiesendanger ◽  
Valentine Grimaudo ◽  
Marek Tulej ◽  
Andreas Riedo ◽  
Rustam Lukmanov ◽  
...  
Keyword(s):  
Laser Ablation ◽  
Mass Spectrometer ◽  
Measurement Technique ◽  
High Performance ◽  
Mass Resolution ◽  
Solid Sample ◽  
Sample Analysis ◽  
New Perspective ◽  
Solid Sample Analysis

A new high-performance laser ablation and ionisation (LIMS) mass spectrometer for solid sample analysis with micrometer spatial- and up to 10 000 mass resolution is presented.

High mass-resolution using a quadrupole ion-trap mass spectrometer

1991 ◽  
Vol 5 (7) ◽  
pp. 327-329 ◽  
Author(s):  
Jon D. Williams ◽  
Kathleen A. Cox ◽  
R. Graham Cooks ◽  
Raymond E. Kaiser ◽  
Jae C. Schwartz ◽  
...  
Keyword(s):  
Mass Spectrometer ◽  
Ion Trap ◽  
Quadrupole Ion Trap ◽  
Mass Resolution ◽  
High Mass ◽  
Ion Trap Mass Spectrometer ◽  
High Mass Resolution

scholarly journals Aerodynamic and Structural Design of a 2022 Formula One Front Wing Assembly

Fluids ◽  
2020 ◽  
Vol 5 (4) ◽  
pp. 237 ◽  
Author(s):  
Xabier Castro ◽  
Zeeshan A. Rana
Keyword(s):  
Structural Design ◽  
High Performance ◽  
Stokes Equations ◽  
Structural Parameters ◽  
Superposition Principle ◽  
Structural Behaviour ◽  
Finite Elements Analysis ◽  
Maximum Deformation ◽  
Formula One ◽  
Front Wing

The aerodynamic loads generated in a wing are critical in its structural design. When multi-element wings with wingtip devices are selected, it is essential to identify and to quantify their structural behaviour to avoid undesirable deformations which degrade the aerodynamic performance. This research investigates these questions using numerical methods (Computational Fluid Dynamics and Finite Elements Analysis), employing exhaustive validation methods to ensure the accuracy of the results and to assess their uncertainty. Firstly, a thorough investigation of four baseline configurations is carried out, employing Reynolds Averaged Navier–Stokes equations and the k-ω SST (Shear Stress Transport) turbulence model to analyse and quantify the most important aerodynamic and structural parameters. Several structural configurations are analysed, including different materials (metal alloys and two designed fibre-reinforced composites). A 2022 front wing is designed based on a bidimensional three-element wing adapted to the 2022 FIA Formula One regulations and its structural components are selected based on a sensitivity analysis of the previous results. The outcome is a high-rigidity-weight wing which satisfies the technical regulations and lies under the maximum deformation established before the analysis. Additionally, the superposition principle is proven to be an excellent method to carry out high-performance structural designs.

Simultaneous analysis of tocopherols, tocotrienols, phospholipids, γ-oryzanols and β-carotene in rice by ultra-high performance liquid chromatography coupled to a linear ion trap-orbitrap mass spectrometer

2016 ◽  
Vol 8 (28) ◽  
pp. 5628-5637 ◽  
Author(s):  
Li Zhu ◽  
Shitian Yang ◽  
Gongke Li ◽  
Xieguang Zhang ◽  
Jun Yang ◽  
...  
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Mass Spectrometer ◽  
High Performance ◽  
Ion Trap ◽  
Simultaneous Analysis ◽  
Linear Ion Trap ◽  
Orbitrap Mass Spectrometer ◽  
Β Carotene ◽  
Orbitrap Ms

An UHPLC-LTQ-Orbitrap MS method was developed for the simultaneous analysis of tocopherols, tocotrienols, phospholipids, γ-oryzanols and β-carotene in rice.

Integration of a liquid-phase ion trap with a miniature mass spectrometer

2021 ◽  
pp. 339315
Author(s):  
Wanzhen Han ◽  
Shiyu Du ◽  
Caowei Tang ◽  
Yiling Li ◽  
Ting Jiang ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Mass Spectrometer ◽  
Ion Trap ◽  
Miniature Mass Spectrometer

scholarly journals An ion trap time-of-flight mass spectrometer with high mass resolution for cold trapped ion experiments

2017 ◽  
Vol 88 (12) ◽  
pp. 123107 ◽  
Author(s):  
P. C. Schmid ◽  
J. Greenberg ◽  
M. I. Miller ◽  
K. Loeffler ◽  
H. J. Lewandowski
Keyword(s):  
Mass Spectrometer ◽  
Ion Trap ◽  
Time Of Flight ◽  
Mass Resolution ◽  
High Mass ◽  
Trapped Ion ◽  
Flight Mass Spectrometer ◽  
High Mass Resolution
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