Results 1 to 10 of about 317,828 (221)
Maui-VIA: A User-Friendly Software for Visual Identification, Alignment, Correction, and Quantification of Gas Chromatography–Mass Spectrometry Data [PDF]
Frontiers in Bioengineering and Biotechnology, 2015 A current bottleneck in GC-MS metabolomics is the processing of raw machine data into a final datamatrix that contains the quantities of identified metabolites in each sample. While there are many bioinformatics tools available to aid the initial steps of the process, their use requires both significant technical expertise and a subsequent manual ...
Henning, Peter +3 more
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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
Analyze Mass Spectrometry data with Artificial Intelligence to assist the understanding of past habitability of Mars and provide insights for future missions [PDF]
, 2023 This paper presents an application of artificial intelligence on mass spectrometry data for detecting habitability potential of ancient Mars. Although data was collected for planet Mars the same approach can be replicated for any terrestrial object of our solar system.
arxiv +1 more source
Asian Journal of Pharmaceutical and Clinical Research, 2018 Objective: This study deals with the determination of possible phytocompounds present in the ethyl acetate extract of Enhalus acoroides using gas chromatography-mass spectroscopy (GC-MS) technique. Methods: Using GC-MS technique the phytocompounds present in the ethyl acetate extract of E. acoroides whole seagrass was investigated, and the mass spectra
Jayalakshmi M +3 more
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Asian Journal of Pharmaceutical and Clinical Research, 2018 Objective: The two plant species Portulaca oleracea and Portulaca quadrifida are commonly known as purslane and chickweed, respectively. They are typically consumed as salad or pickle. Traditional systems of medicine from Africa and China have described these plants belonging to family Portulacaceae as remedies against a host of diseases.
Trupti P Durgawale +2 more
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Mobility of O$_2^-$ ions in supercritical Ar: Experiment and Molecular Dynamics Simulations [PDF]
International Journal of Mass Spectrometry 277 (2008) 220-222, 2008 A new analysis and new Molecular Dynamics (MD) simulations of the measurements of the mobility $\mu_{i}$ of O$_{2}^{-} $ ions in dense supercritical Ar gas are reported. $\mu_{i}$ shows a marked dependence on the distance from the critical temperature $T_{c}.$ A mobility defect appears as a function of the gas density and its maximum value occurs below
arxiv +1 more source
Highly sensitive single-molecule detection in slow protein ion beams [PDF]
Sci. Adv. 9, eadj2801 (2023), 2023 The analysis of proteins in the gas phase benefits from detectors that exhibit high efficiency and precise spatial resolution. Although modern secondary electron multipliers already address numerous analytical requirements, new methods are desired for macromolecules at low energy.
arxiv +1 more source
Simultaneous ambient pressure X-ray photoelectron spectroscopy and grazing incidence X-ray scattering in gas environments [PDF]
, 2021 We have developed an experimental system to simultaneously observe surface structure, morphology, composition, chemical state, and chemical activity for samples in gas phase environments. This is accomplished by simultaneously measuring X-ray photoelectron spectroscopy (XPS) and grazing incidence X-ray scattering (GIXS) in gas pressures as high as the ...
arxiv +1 more source
, 2018 Additional file 1. Details of the chemical standards used for the analysis; MS acquisition parameters for all three GC/MS systems, PAH levels in blank samples together with their respective Limits of Detection (LODs) and Limits of Quantification (LOQs) as well as repeatability and accuracy of fortified Quality Control (QC) samples.
Jeffery, Jana +5 more
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Fundamentals of ion mobility spectrometry [PDF]
Curr. Op. Chem. Biol. (2018) 42, 51-59, 2017 Fundamental questions in ion mobility spectrometry have practical implications for analytical applications in general, and omics in particular, in three respects. (1) Understanding how ion mobility and collision cross section values depend on the collision gas, on the electric field and on temperature is crucial to ascertain their transferability ...
arxiv +1 more source