ArticleAnalytical chemistry2012
Improving the comprehensiveness and sensitivity of sheathless capillary electrophoresis-tandem mass spectrometry for proteomic analysis.
Article in Analytical chemistry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 69 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
69 citing papers in PubMed, 139 citations in OpenAlex.
- Decades of dreams coming true: capillary zone electrophoresis-mass spectrometry for reproducible multi-level proteomics.bioRxiv : the preprint server for biology · 2026Article
- Intact Proteoform Analysis by Capillary Electrophoresis-Mass Spectrometry. Are We There Yet?Angewandte Chemie (International ed. in English) · 2026Article
- Real-Time Eco-AI, Electrophoresis-Correlative Data-Dependent Acquisition with AI-Based Data Processing Broadens Access to Single-Cell Mass Spectrometry Proteomics.Angewandte Chemie (International ed. in English) · 2025Article
- SPE-CZE-MS Quantifies Zeptomole Amounts of Phosphorylated Peptides.Journal of proteome research · 2025Article
- A Multipoint Validation of Quantification in Capillary Electrophoresis Mass Spectrometry Proteomics: Isobaric Multiplexing with Tandem Mass Tags.Analytical chemistry · 2025Article
- Capillary Electrophoresis-Mass Spectrometry for Top-Down Proteomics.Annual review of analytical chemistry (Palo Alto, Calif.) · 2025Review
- Data-Independent Acquisition Shortens the Analytical Window of Single-Cell Proteomics to Fifteen Minutes in Capillary Electrophoresis Mass Spectrometry.Journal of proteome research · 2025Article
- Solid-Phase Microextraction-Aided Capillary Zone Electrophoresis-Mass Spectrometry: Toward Bottom-Up Proteomics of Single Human Cells.Journal of the American Society for Mass Spectrometry · 2024Article
- Top-Down Proteomics Analysis of Picogram-Level Complex Samples Using Spray-Capillary-Based Capillary Electrophoresis-Mass Spectrometry.Analytical chemistry · 2024Article
- Multidimensional Separations in Top-Down Proteomics.Analytical science advances · 2023Article
- Recent advances (2019-2021) of capillary electrophoresis-mass spectrometry for multilevel proteomics.Mass spectrometry reviews · 2023Review
- Separation methods in single-cell proteomics: RPLC or CE?International journal of mass spectrometry · 2022Article
- Preparative capillary electrophoresis (CE) fractionation of protein digests improves protein and peptide identification in bottom-up proteomics.Analytical methods : advancing methods and applications · 2022Article
- Review
- Nanoparticle-Aided Nanoreactor for Nanoproteomics.Analytical chemistry · 2021Article
- Development of an Online 2D Ultrahigh-Pressure Nano-LC System for High-pH and Low-pH Reversed Phase Separation in Top-Down Proteomics.Analytical chemistry · 2020Article
- Article
- Recent trends of capillary electrophoresis-mass spectrometry in proteomics research.Mass spectrometry reviews · 2019Review
- Improved Nanoflow RPLC-CZE-MS/MS System with High Peak Capacity and Sensitivity for Nanogram Bottom-up Proteomics.Journal of proteome research · 2019Article
- Single-Shot Capillary Zone Electrophoresis-Tandem Mass Spectrometry Produces over 4400 Phosphopeptide Identifications from a 220 ng Sample.Journal of proteome research · 2019Article
9 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
Abstract
We describe a solid phase microextraction (SPME), multistep elution, transient isotachophoresis (tITP) capillary electrophoresis-tandem mass spectrometry (CE-MS/MS) procedure which employs a high sensitivity porous electrospray ionization (ESI) sprayer for the proteomic analysis of a moderately complex protein mixture. In order to improve comprehensiveness and sensitivity over a previously reported proteomic application of the ESI sprayer, we evaluated preconcentration with SPME and multistep elution prior to tITP stacking and CE separation. To maximize separation efficiency, we primarily employed electrokinetic methods for elution and separation after loading the sample by application of pressure. Conditions were developed for optimum simultaneous electrokinetic elution and sample stacking using a tryptic digest of 16 proteins to maximize peptide identifications and minimize band broadening. We performed comparative proteomic analysis of a dilution series using CE and nanoflow liquid chromatography (nLC). We found complementary peptide and protein identifications with larger quantities (100 ng) of a Pyrococcus furiosus tryptic digest, but with mass-limited amounts (5 ng) CE was 3 times more effective at identifying proteins. We attribute these gains in sensitivity to lower noise levels with the porous CE sprayer, illustrated by better signal-to-noise ratios of peptide precursor ions and associated higher XCorr values of identified peptides when compared directly to nLC. From comparative analysis of SPME-tITP-CE with direct injection CE, the SPME-tITP process improved comprehensiveness and sensitivity.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.