Results 21 to 30 of about 478,907 (316)
Toxics, 2022 Flame retardants are added to consumer products to retard the ignition of combustible materials. Technical mixtures of polybrominated diphenyl ethers (PBDEs) and hexabromocyclododecane (HBCDD) were massively used for several decades.
Eva Lipičar +3 more
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Simultaneous Determination of 20 Pyrazines in Baijiu by Gas Chromatography-Tandem Mass Spectrometry [PDF]
Shipin KexueIn this study, a method for the simultaneous determination of 20 pyrazines in baijiu was established by direct injection (DI) combined with gas chromatography-tandem mass spectrometry (GC-MS/MS), and the pyrazines in 10 brands of baijiu with different ...
WANG Na, SHEN Yi, ZHUANG Yuan, CHENG Wei, LUO Sen, ZHANG Yadong, LIU Zixuan, LIU Bing, GAO Hongbo
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Mass spectrometry based metabolomics and Lipidomics. [PDF]
, 2021 Metabolomics and lipidomics studies are important to understand living organisms at the molecular level. In this dissertation, I conducted various untargeted and targeted metabolomics and lipidomics studies using mass spectrometry based analytical ...
Yuan, Fang
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Gas Chromatography-Mass Spectrometry of Volatile Organic Impurities in Whiskey
Техника и технология пищевых производств, 2022 Alcoholic beverages are complex multicomponent objects. Their quality and safety control is a serious analytical task that requires new, more accurate instrumental methods, e.g., chromatography-mass spectrometry.
Nataliya V. Shelekhova +3 more
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Identifying metabolites by integrating metabolome databases with mass spectrometry cheminformatics. [PDF]
, 2018 Novel metabolites distinct from canonical pathways can be identified through the integration of three cheminformatics tools: BinVestigate, which queries the BinBase gas chromatography-mass spectrometry (GC-MS) metabolome database to match unknowns with ...
A El-Tayeb +45 more
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Carbohydrate Polymer Technologies and Applications, 2023 Oligosaccharides play a central role in plants and are involved in basal metabolism, and many other functions at cellular levels. Indeed, oligosaccharides analysis was stimulated by the development of analytical chemistry and computational biology and ...
Noureddine Benkeblia
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Molecules, 2023 The concentration of polycyclic aromatic hydrocarbons (PAHs) in the atmosphere has been continually monitored since their toxicity became known, whereas nitro-PAHs (NPAHs) and oxy-PAHs (OPAHs), which are derivatives of PAHs by primary emissions or ...
Jungmin Jo +5 more
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Frontiers in Nutrition, 2023 BackgroundThe misuse of animal-derived stimulants in food is becoming increasingly common, and mass spectrometry (MS) is used extensively for their detection and analysis.
Qiang Zhang, Hongying Du, Yingjian Zhang
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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