Results 21 to 30 of about 6,184 (250)
Geofluids, 2019 Sample preparation technique, for the analysis of δ13C ratios in oil and gas samples, has gradually been recognized as one of the most crucial steps of the whole analytical process.
Cancan Yan +7 more
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Frontiers in Chemistry, 2022 Hydrogen isotope analysis of coal is an important tool in the geochemical analysis of coal. The traditional method of hydrogen isotope analysis of coal requires the oxidation of organic matter bound hydrogen in coal to water by an oxidizing agent and ...
Hongwei Li +3 more
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Geophysical Monograph Series, Page 263-304., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jessica H. Whiteside +3 more
wiley +2 more sources
Isotope ratio mass spectrometry application for environmental investigations [PDF]
E3S Web of Conferences, 2019 Stable isotope ratio mass spectrometry (IRMS) is a useful technique with a broad range of applications. Stable isotopes are important indicators of environmental changes (including climate), and can be used to explain the functioning of biogeochemical ...
Simonova Galina, Kalashnikova Daria
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Environmental Advances, 2021 Isotope ratio analysis of total organic carbon (TOC) is well-established for the study of rivers, lakes, and oceans. Similarly, these aquatic systems are routinely surveyed to quantify natural and anthropogenic organic compounds and pollutants, including
Marcin Fiedziukiewicz, Quentin Hanley
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Journal of Natural Gas Geoscience, 2016 A new method had been developed for the analysis of hydrogen isotopic composition of trace hydrocarbons in natural gas samples by using solid phase microextraction (SPME) combined with gas chromatography-isotope ratio mass spectrometry (GC/IRMS). In this
Xibin Wang +6 more
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Education SciencesThe increasing presence of racialized and immigrant students and educators challenges school institutions to critically examine whose knowledge, leadership, and practices are recognized, legitimized, and valued.
Marianne Jacquet, Gwenaëlle André
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Heliyon, 2018 Recently, a number of consumers have begun to appreciate more natural ingredients and have become less willing to consume monosodium glutamate (MSG) as a seasoning.
Kazuhiro Kobayashi +5 more
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The combination of early and rapid type I IFN, IL-1α, and IL-1β production are essential mediators of RNA-like adjuvant driven CD4+ Th1 responses. [PDF]
PLoS ONE, 2011 There is a growing need for novel vaccine adjuvants that can provide safe and potent T-helper type 1 (Th1) activity. RNA-like immune response modifiers (IRMs) are candidate T-cell adjuvants that skew acquired immune responses towards a Th1 phenotype.
Rachel F Madera +2 more
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Advanced Materials, EarlyView.Ionic conjugated polyelectrolyte electron‐blocking layers enable photomultiplication organic photodetectors with dark current robustness up to −10 V and external quantum efficiencies exceeding 3000%. Fowler–Nordheim tunneling, interfacial dipole, trap density of states, and noise analyses reveal how ionic conjugated polyelectrolytes suppress electron ...
Yelim Kang +12 more
wiley +1 more source