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This Minireview highlights applications of ESI-MS (ElectroSpray Ionization Mass Spectrometry) for investigations of photochemical reactions. We show possible approaches to on-line ESI-MS monitoring of photocatalytic reactions and give examples of characterization of short-lived photochemical intermediates by ion spectroscopy. The minireview also exemplifies in-depth mass spectrometric studies of photoisomerization reactions and photofragmentation reactions. Apart from mechanistic studies, the coupling of photochemistry and mass spectrometry is a powerful approach in studying structure and properties of biomolecules. We show several examples focused on investigation of intrinsic properties of model biomolecules.
This article was published in the following journal.
Name: Chembiochem : a European journal of chemical biology
Mechanistic studies are of great importance for the understanding, optimization, and design of chemical reactions, especially catalysis. In recent years, the combination of mass spectrometry and compu...
We report the use of ion mobility mass spectrometry (IMMS) and energy-resolved collisional activation to investigate gas-phase reactions of protonated aniline and protonated phenol. Protonated aniline...
In the field of natural products, dereplication of complex mixtures hasbecomes usual practice to annotate known compounds and avoid their re-isolation. To this purpose, many groups rely on liquid chro...
Characterizing chain-end structures formed during initiation reactions of radical polymerization for MMA-St-BA terpolymer using pyrolysis-gas chromatography-atmospheric pressure chemical ionization-high resolution time-of-flight mass spectrometry.
Analyzing polymer end groups using pyrolysis (Py) gas chromatography-mass spectrometry (GC/MS) in multi-component polymer samples is not an easy task because of the insufficient sensitivity, selectivi...
Thermal decomposition of hexamethyldisilane (HMDS) was studied from room temperature to 1310 K using flash pyrolysis vacuum ultraviolet single-photon ionization time-of-flight mass spectrometry (VUV-S...
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...
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...
The main objective is to establish that a new technique of amyloidosis typing by Proteomics (based on nanoLC-MS/MS mass spectrometry) allows typing in > 90% of observations in patients who...
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...
The type-2 diabetes mellitus（T2DM）, metabolic syndrome, cardiovascular disease complications induced by polycystic ovary syndrome(PCOS) with insulin resistance(IR）, which become serious ...
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.
Chemical reactions effected by light.
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Multiple sclerosis (MS) is the most common disabling neurological condition affecting 100,000 young adults in the UK. The condition results from autoimmune damage to myelin, causing interference in nerve signaling. Symptoms experienced depend on the pa...