Results 221 to 230 of about 4,448 (271)

Stable Isotope Reference Materials and Scale Definitions-Outcomes of the 2024 IAEA Experts Meeting. [PDF]

Rapid Commun Mass Spectrom
Camin F, Besic D, Brewer PJ, Allison CE, Coplen TB, Dunn PJH, Gehre M, Gröning M, Meijer HAJ, Hélie JF, Iacumin P, Kraft R, Krajnc B, Kümmel S, Lee S, Meija J, Mester Z, Mohn J, Moossen H, Qi H, Skrzypek G, Sperlich P, Viallon J, Wassenaar LI, Wielgosz RI.   +24 more
europepmc   +1 more source

C, H, O, N Stable Isotope Analysis Coupled with Chemometrics for Geographic Origin Authentication of Pacific White Shrimp (<i>Litopenaeus vannamei</i>) in China. [PDF]

Foods
Wang N, Wang C, Wang H, Zhang L, Zhang M, Jing H, Mei L, Qiu S, Liu X, Lv J, Wu S.   +10 more
europepmc   +1 more source

Differential changes of trichloroethylene degradation efficiency and carbon isotope fractionation during oxygenation of different Fe(ii) species. [PDF]

RSC Adv
Chen R, Liu J, Yu H.
europepmc   +1 more source

Pyrite morphology and sulfur isotopes refine taphonomic models for the 2.1 Ga Francevillian biota, Gabon. [PDF]

Sci Rep
El Khoury A, Saleh F, El Albani A, Fontaine C, Rollion-Bard C, Chraiki I, Aubineau J, Ngwal'ghoubou Ikouanga J, Bhilisse M, Zguaid M, Somogyi A, Chi Fru E.   +11 more
europepmc   +1 more source

CAM photosynthesis may have conferred an advantage during the Permian-Triassic mass extinction event. [PDF]

Nat Ecol Evol
Xu Z, Hilton J, Yu J, Wignall PB, Farnsworth A, Montañez IP, Peng N, Liang Q, Sun X, Mills BJW, Lomax BH.   +10 more
europepmc   +1 more source

Supplementary material to "Advancing Isotope-Enabled Model for Comprehensive Understanding of Atmospheric Sulfur Isotope Effects: Revealing the Overlooked Isotopic Fractionation During Combustion and Gas Desulfurization"

Lianfang Wei, Xueshun Chen, Wenyi Yang, Zhe Wang, Jie Li, Di Liu, Huiyun Du, Xiaole Pan, Yafang Cheng, Pingqing Fu, Zifa Wang   +10 more
openalex   +1 more source

Sulfur isotope mass balance reveals 32S/34S fractionation during sulfate uptake and translocation in rice

, 2019
Viviana Cavallaro, Mariachiara Caschetto, Moez Maghrebi, Gian Attilio Sacchi, F.F. Nocito   +4 more
openalex   +1 more source

Microscale reservoir effects on microbial sulfur isotope fractionation

Geochimica Et Cosmochimica Acta, 2017
Abstract Microbial sulfate reduction can impart strong sulfur isotope fractionation by preferentially using the lighter 32 SO 4 2 - over the heavier 34 SO 4 2 - . The magnitude of fractionation depends on a number of factors, including ambient concentrations of sulfate and electron donors.
Stilianos Louca, Sean A Crowe
exaly   +3 more sources

Sulfur Isotope Fractionation in the Biogeochemical Sulfur Cycle of Marine Sediments

Isotopes in Environmental and Health Studies, 2001
Abstract The sulfur isotopic record of sedimentary sulfides (mainly pyrite) and sulfates shows considerable variations in time and plays an important role in the biological and geochemical interpretation, e.g., of the evolution of life and the oxygen partial pressure of Earth's atmosphere (e.g. [1]).
Böttcher, M.
openaire   +4 more sources

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The Selective Flux of Sulfur and Implications for Magmatic Sulfur Isotope Fractionation

Isotopes in Environmental and Health Studies, 1990
The selective flux of sulfur during magma emplacement is proposed to explain some abnormal δ34S data from granitic and basaltic rocks. It is assumed that on the one hand a quasi-equilibrium isotope fractionation exists between sulfate and sulfide during magma cooling, and on the other hand a non-equilibrium fractionation occurs between the fluxed ...
exaly   +2 more sources