Results 131 to 140 of about 9,785 (280)

Sulfide invasion in the seagrass Posidonia oceanica at Mediterranean fish farms: assessment using stable sulfur isotopes [PDF]

[eng] The effect of organic enrichment of sediments on the composition of stable sulfur isotopes (δ34S), sulfide invasion (Fsulfide) and concentrations of total sulfur (TS) and elemental sulfur (S0) in the seagrass Posidonia oceanica was investigated ...
Holmer, M., Duarte, C.M., Marba, N., Frederiksen, M.S., Díaz-Almela, E.   +4 more
core   +1 more source

Dioxomolybdenum(VI) Complexes Supported by Fluxional Bis(amide)‐Functionalized Aminophenolate Ligands

European Journal of Inorganic Chemistry, EarlyView.
New bis(amide) aminophenolate ligands form dioxomolybdenum(vi) and dioxotungsten(vi) complexes showing solvent‐dependent nuclearity. Whilst monomeric complexes featuring methoxide ligands are obtained in methanol, water triggers formation of μ‐oxo‐bridged dimers via oxo exchange, verified by 18O labelling.
Pasi Vikberg, Anssi Peuronen, Manu Lahtinen, Ari Lehtonen   +3 more
wiley   +1 more source

Geochemical transformations of sulfur and their role in the formation of different types and subtypes of saline lakes in Southeastern Transbaikalia

Applied Water Science
This study focused on the chemistry and isotopes of sulfur in lakes. The bottom sediments and water columns of lakes were found to contain reduced forms of sulfur, including hydrogen sulfide ions, elemental sulfur, and thiosulfate ions, along with ...
S. V. Borzenko, I. A. Fedorov
doaj   +1 more source

How Multiple Sulfur Isotopes (δ33S, δ34S, δ36S) Help Unravel the Context of Thermochemical Sulfate Reaction during Metamorphic Events: Application to Subducted Evaporites from the French Alps

, 2018
International audienceAnalyses of the multiple sulfur isotopes (δ33S, δ34S, δ36S) on the sulfur-rich minerals from the “Nappe des Gypses” formation (western French Alps), allow a better constrain on the TSR process.
Lorgeoux, C., Strzerzynski, Pierre, Assayag, N., L. Truche, S. Guillot, Barré, G., E. Thomassot, Thomassot, E., G. Barré, R. Michels, C. Lorgeoux, P. Cartigny, Cartigny, P., Strzerzynski, P., N. Assayag, P. Strzerzynski, Michels, R., Truche, L., Guillot, S.   +18 more
core   +1 more source

Strategies for Identification and Mitigation of Sanguinarine in Mustard Oil Adulterated by Argemone—A Comprehensive Review

Food Chemistry International, EarlyView.
Sanguinarine, a toxic alkaloid present in argemone, can lead to epidemic dropsy or chronic diseases through DNA intercalation and immune system suppression. Regulatory efforts face challenges due to economic motivations for adulteration as well as technical, social, and infrastructure barriers.
Gururaj Pejavara Narayana, Subhangi Panigrahi, Suresh Kumar Kalakandan, Hema Vincent, Ashish Rawson   +4 more
wiley   +1 more source

An Estimate of Sulfur Isotope Fractionation Due to SO₂ Self-Shielding in the Upper Atmosphere of Venus

Atmosphere
Sulfur dioxide is a trace constituent of the upper atmosphere of Venus but plays a dominant role in the photochemistry above the cloud tops. Because SO2 undergoes indirect dissociation to a relatively long-lived excited state, it has a line-type ...
James R. Lyons
doaj   +1 more source

Monitoring and Mitigation Strategies for Hazardous Compounds in Chinese Rice Wine (Huangjiu): A Comprehensive Review

Food Safety and Health, EarlyView.
This review elucidates the formation pathways and detection technologies for ethyl carbamate, biogenic amines, and higher alcohols in Huangjiu. It concludes that integrated control frameworks are essential to decouple safety risks from the metabolic processes responsible for flavor development.
Lulu Liu, Zhiqiang Kong, Lin Li, Yifan Zhang, Bei Fan, Minmin Li   +5 more
wiley   +1 more source

Reconstructing Redox Landscape With Coupled Nitrogen‐Sulfur Isotopes: A Case Study From Middle‐Late Triassic Chang 7 Member of the Yanchang Formation in the Ordos Basin (North China)

Geochemistry, Geophysics, Geosystems
Euxinia, a crucial geological condition, usually signifies more severe extinction events attributed to deoxygenation in Earth's history. Despite extensive exploration of various proxies in paleoredox studies, most are primarily utilized to reconstruct ...
Xubin Wang, Lin Dong, Tong Li, Kun Ling, Changhu Zhang, Yijie Bin, Ziyi Wang, Zhijun Jin, Jinhua Fu   +8 more
doaj   +1 more source

Theoretical investigation of the anomalous equilibrium fractionation of multiple sulfur isotopes during adsorption (vol 284, pg 88, 2009)

, 2009
Theoretical investigation of the anomalous equilibrium fractionation of multiple sulfur isotopes during ...
Blanchard, Marc, Cartigny, Pierre, Balan, Etienne, Lazzeri, Michele, Mauri, Francesco, Cabaret, Delphine   +5 more
core   +1 more source

Replacement of Ores Recorded by Textures and Chemical Compositions of Sphalerite: An Example From the Furutobe Kuroko Deposit, Akita, Japan

Geological Journal, EarlyView.
Coupled dissolution‐reprecipitation of early formed Cd‐, Fe‐, Ag‐ and Sb‐poor sphalerite through interaction with high‐temperature and high‐sulphur fugacity Cu‐rich fluids, responsible for the formation of the yellow ores, resulted in the formation of Cd‐, Fe‐, Ag‐ and Sb‐rich, heavily chalcopyrite‐diseased sphalerite and enrichment of critical metals ...
Manuel Nopeia, Ryohei Takahashi, Andrea Agangi, Pearlyn Manalo, Hinako Sato   +4 more
wiley   +1 more source