Temperature dependence of isotopic fractionation in the CO2‐O2 isotope exchange reaction
Sign Up to like & getrecommendations! Published in 2022 at "Rapid Communications in Mass Spectrometry"
DOI: 10.1002/rcm.9301
Abstract: Rationale Oxygen isotope exchange between O2 and CO2 in the presence of heated platinum (Pt) is an established technique for determining the δ 17O value of CO2. However, there is not yet a consensus on… read more here.
Keywords: fractionation factors; isotope exchange; exchange; fractionation ... See more keywords
Variations of stable isotope fractionation during bacterial chromium reduction processes and their implications
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DOI: 10.1016/j.chemgeo.2018.02.004
Abstract: Abstract Many chemical processes generate subtle but readily measured changes in isotope compositions of elements across the periodic table. The elements involved therefore carry diagnostic information about their chemical histories in complex geochemical or biochemical… read more here.
Keywords: reduction; fractionation; reduction rates; fractionation factors ... See more keywords
Lower hydrogen flux leads to larger carbon isotopic fractionation of methane and biomarkers during hydrogenotrophic methanogenesis
Sign Up to like & getrecommendations! Published in 2020 at "Geochimica et Cosmochimica Acta"
DOI: 10.1016/j.gca.2019.11.015
Abstract: Abstract The isotopic composition of lipid biomarkers and biomass in sedimentary environments are widely used to infer microbial metabolisms and constrain carbon cycling processes. It has been observed that metabolic energy availability in the form… read more here.
Keywords: carbon; fractionation; isotopic; fractionation factors ... See more keywords
High Temperature Evaporation and Isotopic Fractionation of K and Cu
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DOI: 10.1016/j.gca.2021.09.035
Abstract: Abstract The chemical and isotopic signatures of moderately volatile elements are useful for understanding processes of volatile depletion in planetary formation and differentiation. However, the fractionation factors between gas and melt phases during evaporation that… read more here.
Keywords: fractionation; evaporation; evaporation isotopic; isotopic fractionation ... See more keywords