Results 51 to 60 of about 116,875 (192)
Stable Isotope Approaches in Vadose Zone Research
Vadose Zone Journal, 2018 Recent developments in the measurement, modeling, and application of stable isotope tools to provide insights on water flow, transport, biogeochemical, and ecological processes in the vadose zone have motivated a special section in .
Christine Stumpp +2 more
doaj +1 more source
Compound-specific isotope analysis
, 2007 The isotopic composition, for example, 14C/12C, 13C/12C, 2H/1H, 15N/14N and 18O/16O, of the elements of matter is heterogeneous. It is ruled by physical, chemical and biological mechanisms. Isotopes can be employed to follow the fate of mineral and organic compounds during biogeochemical transformations. The determination of the isotopic composition of
openaire +2 more sources
Identifying source correlation parameters for hydrocarbon wastes using compound-specific isotope analysis [PDF]
Environmental Pollution, 2006 A preliminary evaluation of compound-specific isotope analysis (CSIA) as a novel, alternative method for identifying source correlation compounds in soils contaminated with residual heavy or weathered petroleum wastes is presented. Oil-contaminated soil microcosms were established using soil (sandy-loam, non-carbonaceous cley) amended with ballast ...
Hough, Rupert L. +5 more
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Updates in metabolomics tools and resources: 2014-2015 [PDF]
, 2016 Data processing and interpretation represent the most challenging and time-consuming steps in high-throughput metabolomic experiments, regardless of the analytical platforms (MS or NMR spectroscopy based) used for data acquisition.
Misra, Biswapriya B. +1 more
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Fingerprinting TCE Sources in a Sedimentary Bedrock Aquifer using Compound Specific Isotope Analysis
Revista Águas Subterrâneas, 2009 Chlorinated volatile organic compounds were detected in an industrial facility in the upper part of the underlying sedimentary fractured bedrock aquifer.
Paulo L. Lima +3 more
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Compound-Specific Isotope Analysis of Amino Acids for Stardust-Returned Samples [PDF]
, 2008 Significant portions of the early Earth's prebiotic organic inventory , including amino acids, could have been delivered to the Earth's sur face by comets and their fragments.
Cook, Jamie +4 more
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Inhomogeneous superconductivity and the "pseudogap state of novel superconductors
, 2006 Novel superconducting compounds such as the high Tc oxides are intrinsically inhomogeneous systems. An inhomogeneous structure is created by doping and the statistical nature of the distribution of dopants.
Kresin, Vladimir +2 more
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Incomplete Wood-Ljungdahl pathway facilitates one-carbon metabolism in organohalide-respiring Dehalococcoides mccartyi. [PDF]
, 2014 The acetyl-CoA "Wood-Ljungdahl" pathway couples the folate-mediated one-carbon (C1) metabolism to either CO2 reduction or acetate oxidation via acetyl-CoA.
Alvarez-Cohen, Lisa +8 more
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Frontiers in Microbiology, 2017 Mass blooms of purple sulfur bacteria growing seasonally on green stranded macroalgae have a major impact on the microbial composition and functionality of intertidal mats.
Cédric Hubas +9 more
doaj +1 more source
Fingerprint analysis of biological samples using ICP-MS and IR-MS [PDF]
, 2012 Atomic spectroscopy based analytical techniques can generate fingerprints encompassing the vast majority of elements found in the periodic table as well as ratios of their stable isotopes. These highly multivariate fingerprints have laid the foundation
Husted, Søren, Laursen, Kristian Holst
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