Results 41 to 50 of about 60,967 (160)
Reliable transport through a microfabricated X-junction surface-electrode ion trap
New Journal of Physics, 2013 We report the design, fabrication and characterization of a microfabricated surface-electrode ion trap that supports controlled transport through the two-dimensional intersection of linear trapping zones arranged in a 90° cross.
Kenneth Wright +11 more
doaj +1 more source
Talanta Open, 2021 A sensitive, simple and quick method for the determination of glyphosate (Gly) and its degradation product, Aminomethyl phosphonic acid (AMPA), in water through ion chromatography coupled to quadrupole-linear ion trap mass spectrometry has been developed.
Vicent Yusà +4 more
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Dynamical stability and quantum chaos of ions in a linear trap [PDF]
Physical Review A, 2000 The realization of a paradigm chaotic system, namely the harmonically driven oscillator, in the quantum domain using cold trapped ions driven by lasers is theoretically investigated. The simplest characteristics of regular and chaotic dynamics are calculated. The possibilities of experimental realization are discussed.
Berman, G. P. +5 more
openaire +2 more sources
Simulation Study of an Extremely Miniature Hyperbolic Linear Ion Trap
Zhipu XuebaoThe miniaturization of mass spectrometers has garnered significant attention in the analytical chemistry community. Leveraging the rapid advancements in micro-electro-mechanical system (MEMS), the development of chip-scale mass spectrometers has emerged ...
Yun-fan HE +8 more
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Trapping and sympathetic cooling of Th3+ ions in a linear ion trap
Journal of Applied PhysicsWe demonstrate a modified integration of a linear ion trap with a time-of-flight mass spectrometer optimized to enhance the loading and detection of Th3+ ions. A phase-locked radiofrequency/high-voltage switch incorporating zero-crossing triggering and a programmable time delay is a key upgrade to minimize RF phase-dependent jitter and enable the ...
Zi Li +5 more
openaire +1 more source
Determination of Methotrexate in Serum by House-Made Quadrupole-Linear Ion Trap Mass Spectrometer
Zhipu XuebaoMethotrexate (MTX) is a therapeutic drug that is widely used in clinic for treatment of a variety of cancers. However, MTX has limited selectivity and serious cytotoxicity, at the same time, there are problems such as narrow therapeutic window and large ...
Liang-ze LIU +11 more
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Molecules, 2016 In this study, an efficient strategy was established using ultra-high-performance liquid chromatography coupled with linear ion trap-Orbitrap mass spectrometry (UHPLC-LTQ-Orbitrap MS) to profile the in vivo metabolic fate of 6′-hydroxy-3,4,5,2′,4 ...
Siyi Liu +7 more
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A cryogenic linear ion trap beamline for providing keV ion bunches [PDF]
Review of Scientific Instruments, 2018 A new cryogenic linear ion trap beamline has been constructed and commissioned, which serves to inject cold molecular and cluster ions into the RIKEN cryogenic electrostatic ring (RICE). Ions are created with an electrospray ion source, and a quadrupole mass filter is used for mass-selection prior to trap injection.
Menk, S +6 more
openaire +3 more sources
Influence of End Cap Structure on the Axial Geometric Parameter of the Linear Paul Trap
AtomsThrough finite-element simulation, the axial potential distribution of the ion trap is analyzed. The effects of the central hole diameter of the end cap and the spacing between the two end caps on the axial geometric parameters of the ion trap are ...
Lin Li, Zi Li
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Thermometry in a Multipole Ion Trap
Applied Sciences, 2020 We present a characterization of the ions’ translational energy distribution in a multipole ion trap. A linear mapping between the energy distribution of the trapped ions onto the ions’ time-of-flight (TOF) to a detector is demonstrated.
Markus Nötzold +5 more
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