نتایج جستجو برای: molybdate reduction

تعداد نتایج: 493143  

Journal: :Applied and environmental microbiology 1987
P Westermann B K Ahring

The dynamics of sulfate reduction, methane production, and denitrification were investigated in a permanently waterlogged alder swamp. Molybdate, an inhibitor of sulfate reduction, stimulated methane production in soil slurries, thus suggesting competition for common substrates between sulfate-reducing and methane-producing bacteria. Acetate, hydrogen, and methanol were found to stimulate both ...

Journal: :Plant physiology 2001
K L Hale S P McGrath E Lombi S M Stack N Terry I J Pickering G N George E A Pilon-Smits

To elucidate plant mechanisms involved in molybdenum (Mo) sequestration and tolerance, Brassica spp. seedlings were supplied with molybdate, and the effects on plant physiology, morphology, and biochemistry were analyzed. When supplied with (colorless) molybdate Indian mustard (Brassica juncea) seedlings accumulated water-soluble blue crystals in their peripheral cell layers. Energy dispersive ...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2012
Yasuo Nakashima Yoshinori Inoue Takahisa Yamamoto Waka Kamichatani Sigehiro Kagaya Atsushi Yamamoto

A simple and sensitive suppressed ion chromatography (IC) method with conductivity detection for the determination of molybdate in environmental water is proposed. Molybdate in highly saline water was extracted and preconcentrated. Preconcentration was accomplished by using a chelating resin using a chelating resin immobilized with carboxymethylated polyethylenimine (Presep(®) PolyChelate). Thi...

Journal: :The Biochemical journal 1951
H WEIL-MALHERBE R H GREEN

The great instability of creatine phosphate (Fiske & Subbarow, 1929), acetyl phosphate (Lipmann & Tuttle, 1944) and 1:3-diphosphoglyceric acid (Negelein & Bromel, 1939) in solutions containing molybdate has been known almost as long as these compounds themselves. It could not fail to attract the attention of the analyst who used a method of phosphate estimation ofthe Briggs (1922) or Fiske & Su...

Sphere-like cadmium molybdate (CdMoO4) nanostructures have been synthesized by a large scale and simple sonochemical method by using Cd(Sal)2 (Sal=salicylidene) and Na2MoO4.2H2O for the first time. The effects of sonochemical irradiation time, sonochemical power, temperature, solvent, surfactant and cadmium source were considered to obtain a controlled shape. The as-prepared nanostructured cadm...

Journal: :Dalton transactions 2015
Juan Xia Le Xin Song Wei Liu Yue Teng Li Zhao Qing Shan Wang Mao Mao Ruan

One-, two- and three-dimensional nanostructures of copper molybdenum oxide hydroxide were successfully constructed by a simple approach through a pH-dependent dimensional transformation of ammonium copper molybdate. Thin nanoplates of copper molybdate, which were obtained by sintering the two-dimensional nanobelts of copper molybdenum oxide hydroxide, exhibited remarkably high reversible lithiu...

2014
Sushil Kumar Sharma

A facile, efficient, simple, environmentally safe, regioselective, controllable and economical method for the oxybromination of aromatic compounds using sodium molybdate in presence of mineral acids and H2O2. The use of sodium molybdate as catalyst accelerates the rate of reaction in presence of mineral acids and hydrogen peroxide.

Journal: :journal of physical & theoretical chemistry 2008
h. salehi e. mollarazi h. abbasi m. zoghi

in this research, a new technetium-99m generator has been developed with addition of cerium oxide to alumina column.  the adsorption behaviors of 99mo in the form of molybdate and 99mtc in the form of pertechnetate on ceo2/al2o3 was investigated and showed that the adsorption capacity of molybdate on this generator is higher than usual generator using al2o3. ceric ions were selected as an addit...

Journal: :Corrosion Science 2021

Corrosion and corrosion inhibition of WE43 magnesium alloy were investigated in NaCl solutions containing different amounts sodium molybdate. Electrochemical, microscopic, spectroscopic experiments utilized to examine the mechanism by molybdates. Electrochemical data showed that Na2MoO4 inhibitor provides reliable at concentrations above 100 mM. Raman XPS spectroscopy demonstrated formed surfac...

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