Applications of Direct Injection Soft Chemical Ionisation-Mass Spectrometry for the Detection of Pre-blast Smokeless Powder Organic Additives [PDF]
, 2019 Analysis of smokeless powders is of interest from forensics and security perspectives. This article reports the detection of smokeless powder organic additives (in their pre-detonation condition), namely the stabiliser diphenylamine and its derivatives 2-
A Jordan +45 more
core +2 more sources
Cerebrospinal fluid, neuroinflammation, and electrospray ionization mass spectrometry [PDF]
Developmental Medicine & Child Neurology, 2021 This commentary is on the original article by Yan et al. on pages 552–559 of this issue.
openaire +3 more sources
Proton Dynamics in Protein Mass Spectrometry [PDF]
, 2017 Native electrospray ionization/ion mobility-mass spectrometry (ESI/IM-MS) allows an accurate determination of low-resolution structural features of proteins. Yet, the presence of proton dynamics, observed already by us for DNA in the gas phase, and its impact on protein structural determinants, have not been investigated so far.
arxiv +1 more source
Mass-Resolved Electronic Circular Dichroism Ion Spectroscopy [PDF]
, 2020 DNA and proteins are chiral: their three-dimensional structure cannot be superimposed with its mirror image. Circular dichroism spectroscopy is widely used to characterize chiral compounds, but data interpretation is difficult in the case of mixtures. We recorded for the first time the electronic circular dichroism spectra of DNA helices separated in a
arxiv +1 more source
Molecules, 2021 Specific and nonspecific non-covalent molecular association of biomolecules is characteristic for electrospray-ionization mass spectrometry analysis of biomolecules.
Paulina Grocholska +3 more
doaj +1 more source
Structural study of analogues of Titan s haze by trapped ion mobility coupled with a Fourier transform ion cyclotron mass spectrometer [PDF]
, 2019 The aerosols present in the atmosphere of the Saturn s moon Titan are of particular planetary science interest and several spacecraft missions already allowed to gather spectroscopic data. Titan haze s analogs, so-called tholins, were produced on earth to push forward the comprehension of their formation and properties.
arxiv +1 more source
Electron Detachment Dissociation,and Collision-Induced Dissociation of Polyamidoamine (PAMAM) Dendrimer Ions with Amino, Amidoethanol, and Sodium Carboxylate Surface Groups [PDF]
, 2008 Here, we investigate the effect of the structure (generation) and nature of the surface groups of different polyamidoamine (PAMAM) dendrimers on electron-mediated dissociation, either electron capture dissociation (ECD) or electron detachment ...
Cooper, Helen J. +1 more
core +2 more sources
Atmospheric Pressure Mass Spectrometry of Single Viruses and Nanoparticles by Nanoelectromechanical Systems [PDF]
arXiv, 2020 Mass spectrometry of intact nanoparticles and viruses can serve as a potent characterization tool for material science and biophysics. Inaccessible by widespread commercial techniques, the mass of single nanoparticles and viruses (>10MDa) can be readily measured by NEMS (Nanoelectromechanical Systems) based Mass Spectrometry, where charged and isolated
arxiv
Recent developments in the rapid analysis of plants and tracking their bioactive constituents [PDF]
, 2009 Natural products chemistry has witnessed many new developments in the last 5 years like extractions with subcritical water and ionic liquids, LC/HRMS and LC/SPE/cryo-NMR, UHPLC, TLC/MS, MS-based preparative HPLC, comprehensive chromatography (GC × GC, LC
Beek, T.A., van +7 more
core +2 more sources
The Chemical Reactions in Electrosprays of Water Do Not Always Correspond to Those at the Pristine Air-Water Interface [PDF]
arXiv, 2018 The recent application of electrosprays to characterize the air-water interface, along with the reports on dramatically accelerated chemical reactions in aqueous electrosprays, have sparked a broad interest. Herein, we report on complementary laboratory and in silico experiments tracking the oligomerization of isoprene, an important biogenic gas, in ...
arxiv