Results 1 to 10 of about 60,917 (114)

Modelling of a linear ion trap operation in the second stability region [PDF]

open access: yesHeliyon, 2022
Ion trajectory numerical simulation is used to find the linear ion trap excitation contour in the second stability region. The effects of initial conditions, the ejection Mathieu parameter, scan speed, dipole excitation voltage and gas damping are ...
N.V. Konenkov, C.-F. Ding, A.N. Konenkov
doaj   +2 more sources

Simulation of a Miniature Linear Ion Trap with Half-Round Rod Electrodes [PDF]

open access: yesMicromachines, 2022
The miniaturization of ion trap mass analyzers is an important direction in the development of mass spectrometers. In this work, we proposed two models of miniaturized HreLIT with a field radius of about 2 mm based on the existing research on ...
Xichi Lu   +7 more
doaj   +2 more sources

Simulation of Unidirectional Ion Ejection in Miniature Four-Channel Linear Ion Trap Array [PDF]

open access: yesSensors
With the surging demand for dynamic, real-time, and rapid qualitative analysis of chemical components, chip-scale mass spectrometers have attracted widespread attention.
Yunfan He   +5 more
doaj   +2 more sources

Portable Digital Linear Ion Trap Mass Spectrometer Based on Separate-Region Corona Discharge Ionization Source for On-Site Rapid Detection of Illegal Drugs [PDF]

open access: yesMolecules, 2022
As narcotic control has become worse in the past decade and the death toll of drug abuse hits a record high, there is an increasing demand for on-site rapid detection of illegal drugs.
Lingfeng Li   +6 more
doaj   +2 more sources

Rapid assay development for low input targeted proteomics using a versatile linear ion trap [PDF]

open access: yesNature Communications
Advances in proteomics and mass spectrometry enable the study of limited cell populations, where high-mass accuracy instruments are typically required. While triple quadrupoles offer fast and sensitive low-mass specificity measurements, these instruments
Ariana E. Shannon   +8 more
doaj   +2 more sources

Design and Performance Evaluation of Asymmetric Hyperboloid Linear Ion Trap [PDF]

open access: yesZhipu Xuebao, 2021
Hyperbolic electrode linear ion trap is a good choice as the mass analyzer of miniaturized ion trap mass spectrometer for the reason that it has a compact size and excellent performance. However, ions are ejected from both opposite directions along the x-
WU Hui   +5 more
doaj   +1 more source

Review of Ion Collision Cross Section Measurement Methods Based on Ion Trap Mass Spectrometry [PDF]

open access: yesZhipu Xuebao, 2022
In recent years, with the increasing demand for molecular structure analysis, the development of method for measuring ion collision cross sections (CCS) in a single ion trap mass analyzer has become a research hot topic.
XIANG Yu, JIANG Ting, XU Wei
doaj   +1 more source

Stability study of intense hadron bunches in linear accelerators using a Paul ion trap

open access: yesPhysical Review Accelerators and Beams, 2022
The collective behavior of an ion cloud confined in a linear Paul trap is physically almost equivalent to that of a relativistic beam traveling in a particle accelerator.
M. Goto   +4 more
doaj   +1 more source

Determination of 25OHD in Serum Based on Quadrupole-Linear Ion Trap Tandem Mass Spectrometric Technique [PDF]

open access: yesZhipu Xuebao, 2023
Vitamin D deficiency and insufficiency is a global health issue that afflicts people of different age groups all over the world. As a reliable indicator for the evaluation of vitamin D, 25OHD is usually determined by LC-MS/MS.
XIE Jie   +11 more
doaj   +1 more source

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