نتایج جستجو برای: sulfur compounds

تعداد نتایج: 254888  

Journal: :Applied microbiology 1964
E KUESTER S T WILLIAMS

The ability of streptomycetes to produce hydrogen sulfide is generally used for taxonomic purposes. It was found that the previously used method, the blackening of Peptone Iron Agar, does not clearly indicate formation of hydrogen sulfide. It was shown that the blackening of a lead acetate strip is the most accurate indicator for H(2)S-producing streptomycetes. A great variety of organic and in...

2017
Mengjun Zhang Liyuan Ma Yu Yang Tingting Hu Xueduan Liu Xian Zhang Yaokun Hua Yu Gao Zhenyu Zhu

We used Illumina HiSeq technology to sequence the whole genome of Pseudomonas stutzeri LH-42, a bacterium isolated from petroleum-contaminated soil in Liaoning Province, China. The bacterium contains a series of specific genes involved in the oxidation of organic sulfur compounds.

2013
Arantxa Peña Antonio Busquets Margarita Gomila Joan Mayol Rafael Bosch Balbina Nogales Elena García-Valdés Antonio Bennasar Jorge Lalucat

Pseudomonas stutzeri strain NF13 was isolated from a water sample taken at a hydrothermal vent in the Galapagos rift. It was selected for its ability to metabolize sulfur compounds and to grow diazotrophically. Here, we report the first draft genome of a member of genomovar 19 of the species.

2010
Johannes Sikorski Christine Munk Alla Lapidus Olivier Duplex Ngatchou Djao Susan Lucas Tijana Glavina Del Rio Matt Nolan Hope Tice Cliff Han Jan-Fang Cheng Roxanne Tapia Lynne Goodwin Sam Pitluck Konstantinos Liolios Natalia Ivanova Konstantinos Mavromatis Natalia Mikhailova Amrita Pati David Sims Linda Meincke Thomas Brettin John C. Detter Amy Chen Krishna Palaniappan Miriam Land Loren Hauser Yun-Juan Chang Cynthia D. Jeffries Manfred Rohde Elke Lang Stefan Spring Markus Göker Tanja Woyke James Bristow Jonathan A. Eisen Victor Markowitz Philip Hugenholtz Nikos C. Kyrpides Hans-Peter Klenk

Sulfurimonas autotrophica Inagaki et al. 2003 is the type species of the genus Sulfurimonas. This genus is of interest because of its significant contribution to the global sulfur cycle as it oxidizes sulfur compounds to sulfate and by its apparent habitation of deep-sea hydrothermal and marine sulfidic environments as potential ecological niche. Here we describe the features of this organism, ...

Journal: :Journal of chromatographic science 2003
Laura Chambers Michael L Duffy

The pulsed flame photometric detector (PFPD) has the advantage of being able to measure the concentration of individual sulfur compounds and total sulfur content in a petrochemical sample in a single gas chromatography run. Because it is an equimolar response detector, the PFPD's sulfur response is independent of a compound's molecular structure, and this feature allows quantitation of the tota...

2017
Elaheh Kowsari

Sulfur-containing compounds in transportation fuels are converted by combustion to SOx, which is a major source of acid rain and air pollution [1]. For environmental protection pur‐ poses, many countries have mandated a reduction in fuels sulfur level down to 10 ppm by 2009 [2,3], and with more and more stringent regulatory constraints, it is a trend to achieve little-to-no sulfur fuels in the ...

Journal: :international journal of environmental research 2014
m.s. sekhavatjou r. moradi a. hosseini alhashemi a. taghinia hejabi

use of zinc and iron oxide are common in the desulfurization process from natural gas. in thisresearch, after determinations of the size and specifications through tem and xrd for each of the metaloxides, two different size ratios were used, 0.66 for zinc oxide and 0.142 for iron oxide. further, absorption of sulfur compounds in gas (hydrogen sulfide (h2s), carbonyl sulfide (cos), methyl mercap...

Journal: :Science 1988
C D Bain G M Whitesides

Long-chain omegahydroxyalkanethiols [HS(CH(2))nOH] coordinate to gold surfaces through the sulfur atom and produce ordered, hydrophilic monolayers in which the hydroxyl groups are exposed at the outer surface. Coadsorption of two omega-hydroxyalkanethiols of different chain lengths n resulted in the formation of a monolayer having a disordered surface region that was markedly less hydrophilic t...

Journal: :ACS nano 2017
Anja Förster Sibylle Gemming Gotthard Seifert David Tománek

Using ab initio density functional theory calculations, we characterize changes in the electronic structure of MoS2 monolayers introduced by missing or additional adsorbed sulfur atoms. We furthermore identify the chemical and electronic function of substances that have been reported to reduce the adverse effect of sulfur vacancies in quenching photoluminescence and reducing electronic conducta...

Journal: :Chemical communications 2013
Lihong Zhang Chenhui Hu Junfeng Zhang Liyuan Cheng Zheng Zhai Jing Chen Weiping Ding Wenhua Hou

Sulfur and iron co-doped titanoniobate nanosheets were prepared and evaluated in alcoholysis of styrene epoxide. The resultant co-doped catalyst exhibited excellent catalytic performance (yield of 99% with methanol as the nucleophile in only 1 h at room temperature) and may act as a promising candidate in many acid-catalyzed reactions.

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