Results 61 to 70 of about 53,190 (206)
Convenient, inexpensive quantification of elemental sulfur [PDF]
, 2015 Cornell researchers have developed a simple and effective way to quantify sulfur by adapting hydrogen sulfur detection tubes traditionally used by the mining ...
Koeberle, Alex
core
Organic sulfur: A spatially variable and understudied component of marine organic matter
Limnology and Oceanography Letters, 2020 Sulfur (S) is a major heteroatom in organic matter. This project evaluated spatial variability in the concentration and molecular‐level composition of organic sulfur along gradients of depth and latitude.
Krista Longnecker +4 more
doaj +1 more source
Journal of Chemistry, 2015 Determination of trace level elemental sulfur from crude oil samples is a tedious task. Recently, several gas chromatographic methods were reported in which selective triphenylphosphine derivatization of sulfur was used to form triphenylphosphine sulfide.
Ibrahim Al-Zahrani +4 more
doaj +1 more source
International Journal of Electrochemical Science, 2018 First, carbon nanofibers were prepared by electrospinning. Then, a CN/S composite was prepared by melting elemental sulfur via high-temperature heat treatment.
Yanhua Wang, Jianying Tong, Kefeng Xie
doaj +1 more source
Seasonal dynamics of elemental sulfur in two coastal sediments [PDF]
, 1982 A spectrophotometric method for elemental sulfur (S0) analysis without interference from other reduced sulfur compounds was adapted for the use in reducing sediments.
Henning Troelsen and Bo Barker Jørgensen
core
(Table 2) Oxidation rate of elemental sulfur (35S°) in the Black Sea under near-natural conditions [PDF]
, 1992 (Table 2) Oxidation rate of elemental sulfur (35S°) in the Black Sea under near-natural ...
Yury I Sorokin (7964564) +1 more
core +1 more source
Year-round trace gas measurements in the central Arctic during the MOSAiC expedition
Scientific Data, 2022 Measurement(s) atmospheric ozone • atmospheric carbon dioxide • atmospheric methane • atmospheric carbon monoxide • atmospheric nitrous oxide • atmospheric dimethylsulfide • atmospheric sulfur dioxide • atmospheric gaseous elemental mercury • volatile ...
Hélène Angot +22 more
doaj +1 more source
Results in Engineering, 2023 Recycling EMAS in an eco-friendly manner is crucial to alleviate the demand for manganese resource and reduce environmental pollution. Hydrometallurgical reductive leaching of EMAS with elemental sulfur is proposed, but sulfur is chemically inert.
Wenbin Yan +6 more
doaj +1 more source
Sulfur-Promoted Decarboxylative Sulfurative Hexamerization of Phenylacetic Acids: Direct Approach to Hexabenzylidyne Tetrasulfides [PDF]
, 2018 During our experiments aimed at understanding the reaction pathways by which arylacetic acids were oxidatively decarboxylated and condensed with different nucleophiles in the presence of elemental sulfur, these acids have been treated with sulfur powder ...
Thanh Binh Nguyen (1508308) +1 more
core +1 more source
Atomic Sulfur: An Element for Adaptation to an Oxidative Environment [PDF]
Molecules, 2017 During the period of rising oxygen concentration in the Earth’s atmosphere (Figure 1), sulfur atoms were incorporated into proteins as redox-active cysteine residues [1] and antioxidant molecules such as thioredoxin, glutathione, and glutaredoxin appeared [...]
Noryuki Nagahara, Maria Wróbel
openaire +5 more sources