Results 41 to 50 of about 1,659,891 (207)
On the chemistry of 1-pyrroline in solution and in the gas phase
Scientific Reports, 2017 1-Pyrroline has a highly characteristic odor, which is employed by living organisms for chemical signaling and other purposes, but the mechanism whereby this odor is formed remains poorly understood.
Xiaoping Zhang +5 more
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A diverse proteome is present and enzymatically active in metabolite extracts
Nature CommunicationsMetabolite extraction is the critical first-step in metabolomics experiments, where it is generally regarded to inactivate and remove proteins. Here, arising from efforts to improve extraction conditions for polar metabolomics, we discover a proteomic ...
Rachel (Rae) J. House +13 more
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Isotope ratio - Mass spectrometry [PDF]
, 2012 Podeu consultar el llibre complet a: http://hdl.handle.net/2445/32166This article summarizes the configurations involving isotope ratio mass spectrometry (IRMS) technology available at the CCiTUB and the wide range of possible applications. Some examples
Marimon Corbella, Rosa Maria +2 more
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The gas phase cyclization of deprotonated N-aryl-2-cyano-2-diazoacetamides [PDF]
, 2005 The document attached has been archived with permission from the publisher.1-Aryl-4-cyano-5-hydroxy-1,2,3-triazoles can be obtained in solution by base-catalysed cyclization of N-aryl-2-cyano-2-diazoacetamides.
Bilusich, D. +6 more
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Seasonal Variation in Stable Isotope Ratios of Cow Milk in Vilnius Region, Lithuania
Animals, 2019 Various studies have shown that stable isotope analysis has the potential to verify the geographic origin of foods and drinks. However, stable isotope composition is not always constant in the environment and can even change in the same area.
Andrius Garbaras +4 more
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Workflow automation in liquid chromatography mass spectrometry [PDF]
, 2019 We describe the fully automated workflow path developed for the ingest and analysis of liquid chromatography mass spectrometry (LCMS) data. With the help of this computational workflow, we were able to replace two human work days to analyze data with two
Baidoo, E +3 more
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Coulomb crystal mass spectrometry in a digital ion trap [PDF]
, 2015 We present a mass spectrometric technique for identifying the masses and relative abundances of Coulomb-crystallized ions held in a linear Paul trap.
Deb, Nabanita +6 more
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BMC ChemistryA condition-controlled divergent trifluoroalkylation strategy for carbazole derivatives has been developed via alkylation with trifluoropyruvate. Employing trifluoroacetic acid (TFA) promoter, FeCl3 catalyst, or AgSbF6 catalyst, a wide scope of mono ...
Peng Chen +4 more
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The History of Nuclidic Masses and of their Evaluation [PDF]
, 2005 This paper is centered on some historical aspects of nuclear masses, and their relations to major discoveries. Besides nuclear reactions and decays, the heart of mass measurements lies in mass spectrometry, the early history of which will be reviewed ...
Aston +54 more
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Journal of Lipid Research, 1966 The mono- and disubstituted cholanoic acids present in human feces have been investigated. Extracts of feces were fractionated on silicic acid column and individual bile acids were isolated by preparative thin-layer chromatography. The isolated compounds
Peter Eneroth +3 more
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