Results 21 to 30 of about 1,192,978 (307)
Radiocarbon positive-ion mass spectrometry [PDF]
, 2015 Proof-of-principle of a new mass spectrometric technique for radiocarbon measurement is demonstrated. Interfering nitrogen and hydrocarbon molecules are largely eliminated in a charge-exchange cell operating on non-metallic gas.
Donzel, Xavier +3 more
core +1 more source
Optical Mass Spectrometry of Cold $\mathrm{RaOH}^+$ and ${\mathrm{RaOCH}_3}^+$ [PDF]
Phys. Rev. Lett. 126, 023002 (2021), 2020 We present an all-optical mass spectrometry technique to identify trapped ions. The new method uses laser-cooled ions to determine the mass of a cotrapped dark ion with a sub-dalton resolution within a few seconds. We apply the method to identify the first controlled synthesis of cold, trapped $\mathrm{RaOH}^+$ and ${\mathrm{RaOCH}_3}^+$.
arxiv +1 more source
Towards data-driven mass spectrometry in atmospheric science [PDF]
, 2023 Aerosols found in the atmosphere affect the climate and worsen air quality. To mitigate these adverse impacts, aerosol formation and aerosol chemistry in the atmosphere need to be better mapped out and understood. Currently, mass spectrometry is the single most important analytical technique in atmospheric chemistry and is used to track and identify ...
arxiv +1 more source
Native Mass Spectrometry and Nucleic Acid G-Quadruplex Biophysics: Advancing Hand in Hand [PDF]
Accounts of Chemical Research, 2021, 54 (19), pp.3691-3699, 2023 While studying nucleic acids to reveal the weak interactions responsible for their three-dimensional structure and for their interactions with drugs, we also contributed to the field of biomolecular mass spectrometry, both in terms of fundamental understanding and with new methodological developments.
arxiv +1 more source
Characterization of Polyphosphoesters by Fourier Transform Ion Cyclotron Resonance Mass Spectrometry [PDF]
, 2009 FT-ICR mass spectrometry, together with collision-induced dissociation and electron capture dissociation, has been used to characterize the polyphosphoester poly[1,4-bis(hydroxyethyl)terephthalate-alt-ethyloxyphosphate] and its degradation products ...
A. A. Ignatius +24 more
core +2 more sources
A Mass Spectrometry Primer for Mass Spectrometry Imaging [PDF]
, 2010 Mass spectrometry imaging (MSI), a rapidly growing subfield of chemical imaging, employs mass spectrometry (MS) technologies to create single- and multi-dimensional localization maps for a variety of atoms and molecules. Complimentary to other imaging approaches, MSI provides high chemical specificity and broad analyte coverage.
Stanislav S. Rubakhin +1 more
openaire +3 more sources
Association Between Plasma Vitamin D2 and Type 2 Diabetes Mellitus
Frontiers in Endocrinology, 2022 ObjectiveTo investigate the relationship between plasma vitamin D2(VD2) and type 2 diabetes(T2DM).MethodData from electronic medical records of 797 inpatients treated at Sun Yat Sen Memorial Hospital, Sun Yat-sen University between June 24, 2019 and ...
Jing-Wan Qi +11 more
doaj +1 more source
Prospects in Analytical Atomic Spectrometry [PDF]
Russian Chemical Reviews, v. 75, pp. 289-302 (2006). [Translated
from Uspekhi Khimii, v. 75, pp. 322-338 (2006)], 2006 Tendencies in five main branches of atomic spectrometry (absorption, emission, mass, fluorescence and ionization spectrometry) are considered. The first three techniques are the most widespread and universal, with the best sensitivity attributed to atomic mass spectrometry.
arxiv +1 more source
Color, Antioxidant Capacity and Flavonoid Composition in Hibiscus rosa-sinensis Cultivars
Molecules, 2023 Hibiscus rosa-sinensis plants are mainly cultivated as ornamental plants, but they also have food and medicinal uses. In this work, 16 H. rosa-sinensis cultivars were studied to measure their colorimetric parameters and the chemical composition of ...
Jesica J. Mejía +4 more
doaj +1 more source
Molecules, 2023 The insertion of circular economy principles into the essential oil (EO) production chain aims to reduce waste generation and make integral use of harvested plant material.
Angie K. Romero +7 more
doaj +1 more source