Results 11 to 20 of about 102,497 (301)
Selected Ion Monitoring for Orbitrap-Based Metabolomics [PDF]
MetabolitesOrbitrap mass spectrometry in full scan mode enables the simultaneous detection of hundreds of metabolites and their isotope-labeled forms. Yet, sensitivity remains limiting for many metabolites, including low-concentration species, poor ionizers, and ...
Wenyun Lu +9 more
doaj +5 more sources
Scientific Reports, 2022 Volatile organic compounds play an essential role in every domain of life, with diverse functions. In this study, we use novel secondary electrospray ionisation high-resolution Orbitrap mass spectrometry (SESI-Orbitrap MS) to monitor the complete yeast ...
Hendrik G. Mengers +2 more
doaj +2 more sources
Orbitrap journey: taming the ion rings [PDF]
Nature Communications, 2019 The establishment of the Orbitrap analyzer as a major player in mass spectrometry based proteomics is traced back to the first public presentation of this technology 20 years ago; when a proof-of-principle application led the way to further advancements ...
Alexander Makarov
doaj +3 more sources
Metabolite Spectral Accuracy on Orbitraps [PDF]
Analytical Chemistry, 2017 Orbitraps are high-resolution ion-trap mass spectrometers that are widely used in metabolomics. While the mass accuracy and resolving power of orbitraps have been extensively documented, their spectral accuracy, i.e., accuracy in measuring the abundances of isotopic peaks, remains less studied.
Xiaoyang Su +2 more
openaire +2 more sources
, 2023 The present study addressed the dissipation of the insecticide chlorantraniliprole in tomatoes treated with Altacor 35 WG under laboratory and greenhouse conditions, as well as the identification of transformation products (TPs) and coformulants ...
Antonio Jesús Maldonado-Reina +11 more
core +1 more source
Sequential Ion-Ion Reactions for Enhanced Gas-Phase Sequencing of Large Intact Proteins in a Tribrid Orbitrap Mass Spectrometer [PDF]
, 2021 We are submitting a manuscript describing the application of proton transfer charge reduction to increase the sequence coverage for proteins > 30 kDa using Orbitrap ...
Romain, Huguet +6 more
core +1 more source
Antioxidants, 2022 The water-based extract of broad bean hulls contains several bioactive molecules, including polyphenols well-known to exert antioxidant activity, which could justify its use in nutraceutical formulations.
Luigi Castaldo +6 more
doaj +1 more source
Implementing Photodissociation in an Orbitrap Mass Spectrometer [PDF]
Journal of the American Society for Mass Spectrometry, 2011 We modified a dual pressure linear ion trap Orbitrap to permit infrared multiphoton dissociation (IRMPD) in the higher energy collisional dissociation (HCD) cell for high resolution analysis. A number of parameters, including the pressures of the C-trap and HCD cell, the radio frequency (rf) amplitude applied to the C-trap, and the HCD DC offset, were ...
Lisa A, Vasicek +6 more
openaire +2 more sources
Metabolites, 2022 We present a novel, scan-centric method for characterizing peaks from direct injection multi-scan Fourier transform mass spectra of complex samples that utilizes frequency values derived directly from the spacing of raw m/z points in spectral scans.
Robert M. Flight +2 more
doaj +1 more source
Identification of 90 chemical compounds of Shenkang injection by using UHPLC-Q-Orbitrap-MS/MS.
, 2023 Identification of 90 chemical compounds of Shenkang injection by using UHPLC-Q-Orbitrap-MS/MS.
Jinlan Xia (8626125) +7 more
core +1 more source