Ion Mobility-Mass Spectrometry of Iodine Pentoxide-Iodic Acid Hybrid Cluster Anions in Dry and Humidified Atmosphere.

08:00 EDT 2nd April 2019 | BioPortfolio

Summary of "Ion Mobility-Mass Spectrometry of Iodine Pentoxide-Iodic Acid Hybrid Cluster Anions in Dry and Humidified Atmosphere."

Nanometer scale clusters form from vapor phase precursors and can subsequently grow into nanoparticles during atmospheric nucleation events. A particularly interesting set of clusters relevant to nucleation is hybrid iodine pentoxide-iodic acid clusters of the form (IO)(HIO), as these clusters have been observed in coastal region nucleation events at anomalously high concentrations. To better understand their properties, we have utilized ion mobility-mass spectrometry to probe the structures of cluster anions of the form (IO)(HIO)(IO) (x = 0 - 7, y = 0 - 1, α = 1 - 3), similar to those observed in coastal nucleation events. We show that (IO)(HIO)(IO) clusters are relatively stable against dissociation during mass spectrometric measurement, as compared to other clusters observed in nucleation events over continental sites, and that at atmospherically relevant relative humidity levels (65% and less), clusters can become sufficiently hydrated to facilitate complete conversion of iodine pentoxide to iodic acid, but that water sorption beyond this level is limited, indicating that the clusters do not persist as nanometer scale droplets in the ambient.


Journal Details

This article was published in the following journal.

Name: The journal of physical chemistry letters
ISSN: 1948-7185


DeepDyve research library

PubMed Articles [14759 Associated PubMed Articles listed on BioPortfolio]

Recommendations for reporting ion mobility Mass Spectrometry measurements.

Here we present a guide to ion mobility mass spectrometry experiments, which covers both linear and nonlinear methods: what is measured, how the measurements are done, and how to report the results, i...

Ion Mobility - Mass Spectrometry: Small molecule applications.

Comparison of the fragmentation behavior of DNA and LNA single strands and duplexes.

DNA and locked nucleic acid (LNA) were characterized as single strands, as well as double stranded DNA-DNA duplexes and DNA-LNA hybrids using tandem mass spectrometry with collision-induced dissociati...

Applicability of methods for determination of iodine in nutrition formula.

The applicability of both inductively coupled plasma mass spectrometry( ICP-MS) and gas chromatography( GC) method to accurately determine iodine in dairy products with different matrices was assessed...

Mass spectrometry-based studies of virus assembly.

The assembly of exact numbers of protein monomers into the distinct architectures of virus capsids has long been of intrigue. Despite the diseases associated with viruses, there is a paucity of anti-v...

Clinical Trials [5633 Associated Clinical Trials listed on BioPortfolio]

Breath Analysis by Ion Mobility Spectrometry

Recognition of disease specific clusters of volatile organic compounds in patients with different lung diseases, using breath analysis with ion mobility spectrometry. Lung diseases of inte...

Extending Urine Analysis By Direct Mass Spectrometry

We aim to evaluate the effect of an extension of conventional urine diagnostics with mass spectrometry in patients with a suspected UTI. Mass spectrometry is done directly from the urine s...

Time to Appropriate Antibiotic Between Using Microarray Assay and Mass Spectrometry Technique

This is an experimental study of participants who had positive blood culture to compare time to appropriate antibiotic between using Microarray Assay and Mass Spectrometry to bacterial Ide...

Mass Spectrometry in Single Bladder Cancer Cells

The study is a pilot study in the feasibility of a diagnostic technique. There is no current data on detection of cisplatin in cancer cells derived from human urine. This study will genera...

Biomarker Screening of PCOS With IR by Metabonomics Technique and Its Relationship With TCM Syndrome Type

The type-2 diabetes mellitus(T2DM), metabolic syndrome, cardiovascular disease complications induced by polycystic ovary syndrome(PCOS) with insulin resistance(IR), which become serious ...

Medical and Biotech [MESH] Definitions

A mass spectrometry technique using two (MS/MS) or more mass analyzers. With two in tandem, the precursor ions are mass-selected by a first mass analyzer, and focused into a collision region where they are then fragmented into product ions which are then characterized by a second mass analyzer. A variety of techniques are used to separate the compounds, ionize them, and introduce them to the first mass analyzer. For example, for in GC-MS/MS, GAS CHROMATOGRAPHY-MASS SPECTROMETRY is involved in separating relatively small compounds by GAS CHROMATOGRAPHY prior to injecting them into an ionization chamber for the mass selection.

A microanalytical technique combining mass spectrometry and gas chromatography for the qualitative as well as quantitative determinations of compounds.

An analytical method used in determining the identity of a chemical based on its mass using mass analyzers/mass spectrometers.

A mass spectrometry technique used for analysis of nonvolatile compounds such as proteins and macromolecules. The technique involves preparing electrically charged droplets from analyte molecules dissolved in solvent. The electrically charged droplets enter a vacuum chamber where the solvent is evaporated. Evaporation of solvent reduces the droplet size, thereby increasing the coulombic repulsion within the droplet. As the charged droplets get smaller, the excess charge within them causes them to disintegrate and release analyte molecules. The volatilized analyte molecules are then analyzed by mass spectrometry.

A mass spectrometric technique that is used for the analysis of a wide range of biomolecules, such as glycoalkaloids, glycoproteins, polysaccharides, and peptides. Positive and negative fast atom bombardment spectra are recorded on a mass spectrometer fitted with an atom gun with xenon as the customary beam. The mass spectra obtained contain molecular weight recognition as well as sequence information.

Quick Search


DeepDyve research library

Searches Linking to this Article