ArticleInternational journal of mass spectrometry2017
Effects of ESI conditions on kinetic trapping of the solution-phase protonation isomer of p-aminobenzoic acid in the gas phase.
Article in International journal of mass spectrometry, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed, 72 citations in OpenAlex.
- AGENTi: APCI-ESI Analyte Ionization Fidelity Pre-Screening Workflow using Multimodel Inference.Journal of chemical information and modeling · 2026Article
- Microcanonical kinetics of water-mediated proton transfer in microhydrated 4-aminobenzoic acid.Science (New York, N.Y.) · 2025Article
- Protonation of Pt(IV) Anticancer Complexes Assayed by Vibrational Ion Spectroscopy.ChemPlusChem · 2025Article
- The Onset for Vibrationally Induced, Intramolecular Proton Transfer at Three Water Molecules in Microhydrated 4-Aminobenzoic Acid.The journal of physical chemistry letters · 2025Article
- Infrared Ion Spectroscopy of Gaseous [Cu(2,2'-Bipyridine)The journal of physical chemistry. A · 2025Article
- Protomer Formation Can Aid the Structural Identification of Caffeine Metabolites.Analytical chemistry · 2022Article
- Stabilization of Glucosyl Dioxolenium Ions by "Dual Participation" of the 2,2-Dimethyl-2-(The Journal of organic chemistry · 2022Article
- Infrared multiple photon dissociation (IRMPD) spectroscopy and its potential for the clinical laboratory.Journal of mass spectrometry and advances in the clinical lab · 2022Article
- Molecular Basis for the Remarkably Different Gas-Phase Behavior of Deprotonated Thyroid Hormones Triiodothyronine (T3) and Reverse Triiodothyronine (rT3): A Clue for Their Discrimination?Analytical chemistry · 2021Article
- Isomer-Specific Two-Color Double-Resonance IRAnalytical chemistry · 2021Article
- Vibrational spectroscopy of the cryogenically cooled O- and N-protomers of 4-Aminobenzoic acid: Tag effects, isotopic labels, and identification of theInternational journal of mass spectrometry · 2020Article
- Protoisomerization of Indigo and Isoindigo Dyes Confirmed by Gas-Phase Infrared Ion Spectroscopy.The journal of physical chemistry. A · 2019Article
- Untrapping Kinetically Trapped Ions: The Role of Water Vapor and Ion-Source Activation Conditions on the Gas-Phase Protomer Ratio of Benzocaine Revealed by Ion-Mobility Mass Spectrometry.Journal of the American Society for Mass Spectrometry · 2017Article
- Infrared ion spectroscopy inside a mass-selective cryogenic 2D linear ion trap.Journal of mass spectrometry : JMS · 2017Article
- Amine vs. carboxylic acid protonation in ortho-, meta-, and para-aminobenzoic acid: An IRMPD spectroscopy study.Journal of molecular spectroscopy · 2017Article
Corrections and comments
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
Abstract
The effects of electrospray ionization (ESI) solvent and source temperature on the relative abundance of the preferred solution-phase (N-protonated; i.e. amine) versus preferred gas-phase (O-protonated; i.e., acid) isomers of p-aminobenzoic acid (PABA) were investigated. When PABA was electrosprayed from protic solvents (i.e., methanol/water), the infrared multiple photon dissociation (IRMPD) spectrum recorded was consistent with that for O-protonation, according to both calculations and previous studies. When aprotic solvent (i.e., acetonitrile) was used, a different spectrum was recorded and was assigned to the N-protonated isomer. As the amine is the preferred protonation site in solution, this suggests that an isomerization takes place under certain conditions. Photodissociation at the diagnostic band for the O-protonated isomer (NH
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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.