Articles with "ion trap" as a keyword



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Experimental Observation of the Effects of Translational and Rotational Electrode Misalignment on a Planar Linear Ion Trap Mass Spectrometer

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Published in 2018 at "Journal of The American Society for Mass Spectrometry"

DOI: 10.1007/s13361-018-1942-x

Abstract: AbstractThe performance of miniaturized ion trap mass analyzers is limited, in part, by the accuracy with which electrodes can be fabricated and positioned relative to each other. Alignment of plates in a two-plate planar LIT… read more here.

Keywords: misalignment; ion trap; ion; trap mass ... See more keywords
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Chemical Mass Shifts in a Digital Linear Ion Trap as Analytical Identity of o-, m-, and p-Xylene

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Published in 2018 at "Journal of The American Society for Mass Spectrometry"

DOI: 10.1007/s13361-018-1963-5

Abstract: AbstractChemical mass shifts between isomeric ions of o-, m-, and p-xylene were measured using a digital linear ion trap, and the directions and values of the shifts were found to be correlated to the collision… read more here.

Keywords: mass shifts; ion trap; mass; chemical mass ... See more keywords
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Performance Investigation of Ion Trap with Various Collision Gas and Pressures

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Published in 2017 at "Chinese Journal of Analytical Chemistry"

DOI: 10.1016/s1872-2040(17)61007-7

Abstract: Abstract Ion trap performances were investigated based on digital ion trap technology with different collision gases and their pressures. Collision gases of helium ( M = 4 amu), nitrogen ( M = 28 amu) and… read more here.

Keywords: ion trap; mass; gas; collision ... See more keywords
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Accelerating Ozonolysis Reactions Using Supplemental RF-Activation of Ions in a Linear Ion Trap Mass Spectrometer.

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Published in 2022 at "Analytical chemistry"

DOI: 10.1021/acs.analchem.1c04915

Abstract: Gas-phase ion-molecule reactions provide structural insights across a range of analytical applications. A hindrance to the wider use of ion-molecule reactions is that they are relatively slow compared to other ion activation modalities and can… read more here.

Keywords: activation; ion molecule; linear ion; ion trap ... See more keywords
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Evaluating Linear Ion Trap for MS3-Based Multiplexed Single-Cell Proteomics.

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Published in 2023 at "Analytical chemistry"

DOI: 10.1021/acs.analchem.2c03739

Abstract: There is a growing demand to develop high-throughput and high-sensitivity mass spectrometry methods for single-cell proteomics. The commonly used isobaric labeling-based multiplexed single-cell proteomics approach suffers from distorted protein quantification due to co-isolated interfering ions… read more here.

Keywords: cell; ms3; single cell; ion trap ... See more keywords
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Single Analyzer Neutral Loss Scans in a Linear Quadrupole Ion Trap Using Orthogonal Double Resonance Excitation.

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Published in 2017 at "Analytical chemistry"

DOI: 10.1021/acs.analchem.7b01963

Abstract: In this follow-up paper to our previous work on single analyzer precursor ion scans in a linear quadrupole ion trap (Snyder, D. T.; Cooks, R. G. Single analyzer precursor ion scans in a linear quadrupole… read more here.

Keywords: single analyzer; ion trap; neutral loss; scans linear ... See more keywords
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Discontinuous Subatmospheric Pressure Interface Reduces the Gas Flow Effects on Miniature CAPI Mass Spectrometer.

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Published in 2020 at "Analytical chemistry"

DOI: 10.1021/acs.analchem.9b04824

Abstract: In the range of miniature mass spectrometers, the miniature ion trap mass spectrometer with continuous atmospheric pressure interface (CAPI) shows good performance potential and advantages due to its excellent sensitivity and analysis speed. However, in… read more here.

Keywords: gas flow; ion trap; mass spectrometer; gas ... See more keywords
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Bioinspired Construction of Uranium Ion Trap with Abundant Phosphate Functional Groups.

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Published in 2021 at "ACS applied materials & interfaces"

DOI: 10.1021/acsami.1c04892

Abstract: Highly efficient extraction of radioactive uranium from aqueous solution remains a serious task in the nuclear energy field. To address this, we here create an effective uranium ion trap by using a novel and facile… read more here.

Keywords: pcn 222; abundant phosphate; uranium ion; ion trap ... See more keywords
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In Vitro Identification of Potential Metabolites of Plinabulin (NPI 2358) in Hepatic Preparations Using Liquid Chromatography–Ion Trap Mass Spectrometry

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Published in 2022 at "ACS Omega"

DOI: 10.1021/acsomega.2c00929

Abstract: Plinabulin (1, NPI2358), a vascular disrupting agent (VDA) molecule, is a synthetic analogue of the natural product phenylahistin (2, NPI 2350), which is isolated from Aspergillus ustus. Evaluation of the in vitro metabolic profile of… read more here.

Keywords: chromatography ion; cells cryopreserved; liquid chromatography; hlms heparg ... See more keywords
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Hot Hydrogen Atom Irradiation of Protonated/Deprotonated Peptide in an Ion Trap Facilitates Fragmentation through Heated Radical Formation.

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Published in 2022 at "Journal of the American Chemical Society"

DOI: 10.1021/jacs.1c11081

Abstract: Tandem mass spectrometry with fragmentation involving the reaction with hydrogen atoms is expected to be useful for the analysis of peptides and proteins. In general, hydrogen atoms preferentially react with odd-electron radicals. The attachment of… read more here.

Keywords: reaction; fragmentation; peptide ions; hydrogen ... See more keywords
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Sampling Accelerated Micron Scale Ice Particles with a Quadrupole Ion Trap Mass Spectrometer.

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Published in 2021 at "Journal of the American Society for Mass Spectrometry"

DOI: 10.1021/jasms.0c00442

Abstract: The Enceladus plume is a target of astrobiological interest in planetary science since it may carry signs of extraterrestrial life entrapped in ice grains formed from the subsurface ocean of this moon of Saturn. Fly-by… read more here.

Keywords: ion trap; mass spectrometer; mass; quadrupole ion ... See more keywords