ArticleAnalytical chemistry2016
Oversampling Selective Accumulation Trapped Ion Mobility Spectrometry Coupled to FT-ICR MS: Fundamentals and Applications.
Article in Analytical chemistry, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed.
- Hyphenation of Trapped Ion Mobility to Two-Dimensional Mass Spectrometry for Protein Analysis in Complex Biomixtures.Journal of the American Society for Mass Spectrometry · 2025Article
- Linker H1 Histone Direct Top-Down Proteoform Analysis.Journal of proteome research · 2025Article
- Histone Analysis Using Mobility- and Mass-Selected Ultraviolet Photodissociation in Tandem with Ultra-High-Resolution Mass Spectrometry.Analytical chemistry · 2025Article
- Description of Dissolved Organic Matter Transformational Networks at the Molecular Level.Environmental science & technology · 2023Article
- Molecular level characterization of DOM along a freshwater-to-estuarine coastal gradient in the Florida Everglades.Aquatic sciences · 2022Article
- Following de novo triglyceride dynamics in ovaries of Aedes aegypti during the previtellogenic stage.Scientific reports · 2021Article
- Resolving Power and Collision Cross Section Measurement Accuracy of a Prototype High-Resolution Ion Mobility Platform Incorporating Structures for Lossless Ion Manipulation.Journal of the American Society for Mass Spectrometry · 2021Article
- Towards Discovery and Targeted Peptide Biomarker Detection Using nanoESI-TIMS-TOF MS.Journal of the American Society for Mass Spectrometry · 2018Article
- Discovery and targeted monitoring of polychlorinated biphenyl metabolites in blood plasma using LC-TIMS-TOF MS.International journal of mass spectrometry · 2018Article
- Linear and Differential Ion Mobility Separations of Middle-Down Proteoforms.Analytical chemistry · 2018Article
- Fast and Effective Ion Mobility-Mass Spectrometry Separation of d-Amino-Acid-Containing Peptides.Analytical chemistry · 2017Article
- Characterization of Intramolecular Interactions of Cytochrome c Using Hydrogen-Deuterium Exchange-Trapped Ion Mobility Spectrometry-Mass Spectrometry and Molecular Dynamics.Analytical chemistry · 2017Article
- Modeling of an Inverted Drift Tube for Improved Mobility Analysis of Aerosol Particles.Scientific reports · 2017Article
- Analysis of Photoirradiated Water Accommodated Fractions of Crude Oils Using Tandem TIMS and FT-ICR MS.Environmental science & technology · 2017Article
- Chemical Analysis of Water-accommodated Fractions of Crude Oil Spills Using TIMS-FT-ICR MS.Journal of visualized experiments : JoVE · 2017Article
- Structures of the kinetically trapped i-motif DNA intermediates.Physical chemistry chemical physics : PCCP · 2016Article
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2 authors.
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Abstract
In the present paper, we describe the fundamentals and analytical advantages of Oversampling Selective Accumulation Trapped Ion Mobility Spectrometry (OSA-TIMS) when coupled to ultrahigh resolution mass analyzers (e.g., FT-ICR MS). During TIMS analysis, ion packages are spatially resolved based on their mobilities along the TIMS analyzer axis and multiple strategies can be utilized during the trapping and elution of the ion population of interest. In the case of OSA-TIMS-FT-ICR MS, the TIMS operation sequence, trapping conditions, and operations are optimized to increase the signal-to-noise and the number of points across the mobility domain, which leads to more accurate mobility and mass measurements. Experimental results show that accurate ion-neutral collision cross sections (<1%) can be measured using OSA-TIMS-FT-ICR MS with high mobility resolving powers (RIMS up to 250), high mass accuracy (<1 ppm), and ultrahigh mass resolution (RMS up to 600-1200k at m/z 400) in a single analysis. The analytical advantages of OSA-TIMS over SA-TIMS were illustrated for the analysis of structural peptide isomers (SDGRG and GRGDS [M + H](+)), conformational isomers (AT-hook peptide 3 KRGRGRPRK [M + 2H](+2)), and a complex mixture of polyaromatic hydrocarbons (PAH) from coal tar. Baseline separation of the structural peptide isomers SDGRG and GRGDS, [M + H](+), was observed, and three conformations were identified for the AT-hook peptide 3 KRGRGRPRK [M + 2H](+2) during OSA-TIMS-FT-ICR MS. A 2-fold increase in the number of molecular features and a 2-6-fold signal-to-noise increase was observed for OSA-TIMS when compared with SA-TIMS during the PAH analysis. This work provides the proof-of-principle for further application of OSA-TIMS-FT-ICR MS for the unsupervised analysis of complex mixtures based on the characterization of the conformational space and the assignment of chemical formulas in a single analysis.
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