Results 31 to 40 of about 14,272 (226)

Shellfish Tissue Monitoring in Piscataqua Region Estuaries 2013 [PDF]

open access: yes, 2013
Originally conducted by the Gulf of Maine Council on the Marine Environment from 1993 to 2011, the Gulfwatch Program examined trends in the water quality of the Gulf of Maine by monitoring toxic contaminant concentrations in the tissues of shellfish ...
Trowbridge, Philip R., Wood, Matthew A.
core   +4 more sources

Enhancing biodesulfurization by engineering a synthetic dibenzothiophene mineralization pathway

open access: yesFrontiers in Microbiology, 2022
A synthetic dibenzothiophene (DBT) mineralization pathway has been engineered in recombinant cells of Pseudomonas azelaica Aramco J strain for its use in biodesulfurization of thiophenic compounds and crude oil.
Igor Martínez   +3 more
doaj   +1 more source

An electron-deficient triosmium cluster containing the thianthrene ligand: Synthesis, structure and reactivity of [Os₃(CO)₉(μ3-η2-C₁₂H₇S₂)(μ-H)] [PDF]

open access: yes, 2008
Reaction of [Os₃(CO)₁₀(CH₃CN)₂] with thianthrene at 80 °C leads to the nonacarbonyl dihydride compound [Os₃(CO)₉(μ-3,4-η²-C₁₂H₆S₂)(μ-H)₂] (1) and the 46-electron monohydride compound [Os₃(CO)₉(μ₃-η²-C₁₂H₇S₂)(μ-H)] (2).
Hassan, Mohammad R.   +7 more
core   +1 more source

Sulfur analysis of Bolu-Mengen lignite before and after microbiological treatment using reductive pyrolysis and gas chromatography/mass spectrometry [PDF]

open access: yes, 2005
Atmospheric pressure-temperature programmed reduction coupled with on-line mass spectrometry (AP-TPR/MS) is used for the first time on microbiologically treated coal samples as a technique to monitor the degree of desulfurization of the various sulfur ...
Bozdemir T.   +27 more
core   +1 more source

Immobilized VO–Schiff Base Complex on Modified Graphene Oxide Nanosheets as an Efficient and Recyclable Heterogeneous Catalyst in Deep Desulfurization of Model Oil

open access: yesActa Chimica Slovenica, 2020
New heterogeneous catalyst was synthesized via covalent anchoring of oxovanadium(IV) complex of 5,5′-dibromobis(salicyledene)diethylenetriamine (VO[5-Br(Saldien)]) on the surface of chloro-modified graphene oxide (GO@CTS).
Maryam Abdi   +3 more
doaj   +1 more source

Excited State Dynamics of Dibenzothiophene Derivatives

open access: yesThe Journal of Physical Chemistry B, 2023
Polycyclic aromatic sulfur heterocycles are environmental pollutants formed from incomplete combustion processes and crude oil spills. Their excited state dynamics are not understood. Herein, femtosecond transient absorption is combined with steady-state spectroscopy and computational methods to elucidate the relaxation mechanisms of three ...
Cameron A. Griffith   +5 more
openaire   +2 more sources

DBT degradation enhancement by decorating Rhodococcus erythropolis IGST8 with magnetic Fe3O4 nanoparticles [PDF]

open access: yes, 2009
Biodesulfurization (BDS) of dibenzothiophene (DBT) was carried out by Rhodococcus erythropolis IGST8 decorated with magnetic Fe3O4 nanoparticles, synthesized in-house by a chemical method, with an average size of 45-50 nm, in order to facilitate the post-
Ansari, Farahnaz   +4 more
core   +1 more source

Studies On An Aerobic Oxidation Of Dibenzothiophene And Related Compounds Using Ruthenium Catalyst

open access: yesArchives of Metallurgy and Materials, 2015
An aerobic oxidation of dibenzothiophene and related compounds using a catalytic amount of ruthenium chloride in hydrocarbon solvents at 80°C for 20 h gave the corresponding sulfones in almost quantitative yields.
Morishita Y., Murata S., Sunada S.
doaj   +1 more source

An Experimental Study on the Operating Parameters of Ultrasound-assisted Oxidative Desulfurization [PDF]

open access: yesIranian Journal of Oil & Gas Science and Technology, 2019
In this research, the effects of important parameters, including the molar ratio of acetic acid to sulfur(S) , sonication time, temperature, and hydrogen the molar ratio of peroxide to sulfur on the performance of ultrasound-assisted oxidative ...
Seyede Leila Ebrahimi   +2 more
doaj   +1 more source

Compound-Specific δ^(34)S Analysis of Volatile Organics by Coupled GC/Multicollector-ICPMS [PDF]

open access: yes, 2009
We have developed a highly sensitive and robust method for the analysis of δ^(34)S in individual organic compounds by coupled gas chromatography (GC) and multicollector inductively coupled plasma mass spectrometry (MC-ICPMS).
Adkins, Jess F.   +2 more
core   +1 more source

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