Ammonium Molybdate
Mostrando 1-12 de 25 artigos, teses e dissertações.
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1. Rhizobial Inoculation and Molybdenum Fertilization in Peanut Crops Grown in a No Tillage System After 20 Years of Pasture
ABSTRACT: Peanut (Arachis hypogea) is an important legume grain consumed by humans and utilized for effective nutrient cycling in a diverse cropping system. Areas that have been cultivated with perennial pasture for decades may have nutritional deficiencies and lack a sufficient population of atmospheric nitrogen-fixing bacteria. Molybdenum is an essential m
Rev. Bras. Ciênc. Solo. Publicado em: 20/12/2018
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2. Relative bioavailability of copper and molybdernum sources and effect of molybdenum on molybdnum and copper excretation and tissue accumulation in lambs.
Five experiments were conducted, including three to estimate relative bioavailability value (RBV, :) of Cu ir sources, one to determine effects of feeding duration anc added dietary concentrations (ADC) of Mo on daily Mo (MOI and Cu excretion (CUEX) and tissue uptake, and one to estimate RBV of Mo in inorganic sources, for lambs fed a corn-soybean meal-cotto
Gainsville: Universty of Florida. Publicado em: 2011
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3. Adição de molibdênio ao inoculante turfoso com bactérias diazotróficas usado em duas cultivares de arroz irrigado.
O objetivo deste trabalho foi avaliar o efeito da utilização de bactérias diazotróficas com ou sem molibdênio em duas cultivares de arroz com diferentes potenciais de fixação biológica de nitrogênio. Dois experimentos foram montados: o primeiro foi conduzido em condições gnotobióticas, com utilização das estirpes BR 11417 (ZAE94 - Herbaspirillu
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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4. A simple spectrophotometric method for the determination of captopril in pharmaceutical preparations using ammonium molybdate
Um método simples, rápido e sensível para a determinação espectrofotométrica de captopril (CPT) em formulações farmacêuticas é proposto. Este método é baseado na reação de redução do molibdato de amônio, na presença de ácido sulfúrico, pelo grupo tiol do CPT, produzindo um composto verde (λ max 407 nm). A lei de Beer é obedecida na faix
Eclética Química. Publicado em: 2010-09
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5. Partial biochemistry characterization and obtention of low molecular weight acid phosphatase from osteoblasts cultures / Perfil da proteína tirosina fosfatase de baixo peso molecular em células osteoblásticas
Events as phosphorilation and desphosphorilation are experienced in cell growth and differentiation processes. Tyrosine phosphatases proteins are involved in these processes. These enzymes are found in animals, plants and occur in multiple forms, differing in relative molecular weight, substrate specificity and sensitivity to inhibitors. The enzymes that hav
Publicado em: 2008
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6. Characterization and catalytic behavior of MoO3/V2O5/Nb2 O5 systems in isopropanol decomposition
The influence of molybdenum oxide as a promoter on the V2O5/Nb2O5 system was investigated. A series of MoO3/V2O5/Nb2 O5 catalysts, with MoO3 loading ranging from 1 to 3 wt% MoO3 and fixed V2O5 content (21 wt%), were prepared by impregnation of the Nb2O5 support with an aqueous solution of ammonium metavanadate and ammonium molybdate. The acid-base properties
Brazilian Journal of Chemical Engineering. Publicado em: 2006-12
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7. Obtenção de filmes passivantes de molibdato de amonio e nitrato de cerio para ligas de zinco eletrodepositadas / The attainment of passivating films of ammonium molybdate and cerium nitrate for alloys of zinc electrodeposits
The electroplated zinc alloy coatings present better corrosion resistance than pure zinc, but they need a posterior passive treatment aiming the reduction of the formation of white corrosion products. Chromate conversion process is the process that, until now, presents the best results as passive treatment for zinc alloy coatings, although it presents high t
Publicado em: 2005
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8. Control and optimization of baths for electrodeposition of Co-Mo-B amorphous alloys
Optimization and control of an electrodeposition process for depositing boron-containing amorphous metallic layer of cobalt-molybdenum alloy onto a cathode from an electrolytic bath having cobalt sulfate, sodium molybdate, boron phosphate, sodium citrate, 1-dodecylsulfate-Na, ammonium sulfate and ammonia or sulfuric acid for pH adjustments has been studied.
Brazilian Journal of Chemical Engineering. Publicado em: 2000-12
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9. Purificação e caracterização das fosfatases acidas das sementes de soja quiescentes
Four fractions of acid phosphatase (API, AP2, AP3A,and AP3B) have been detected and purified from soybean seeds soluble extract through ammonium sulfate and acetone precipitations, and ion exchange, gel filtration and concanavalin Asepharose chromatographies. API was eluted with equilibrium buffer, while AP2 and AP3 were eluted with 0.05 and 0.3 M inorganic
Publicado em: 1995
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10. Ammonium Production in Sediments Inhibited with Molybdate: Implications for the Sources of Ammonium in Anoxic Marine Sediments †
Ammonium production in the presence of specific inhibitors of sulfate reduction and methanogenesis was investigated in six marine sediments which differed in bulk properties and organic matter input. In all cases, little effect of the inhibitors on ammonium production was observed, although sulfate reduction was suppressed by molybdate. This gives evidence t
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11. Sulfite oxidase activity in Thiobacillus novellus.
Thiobacillus novellus shows a maximum induction of sulfite oxidase activity and a maximum growth rate as a result of supplementing the autotrophic growth medium with 4.0 microM ammonium molybdate. Cells grown in the presence of molybdate showed approximately 10-fold increases in the amount of enzyme-associated molybdenum and in the sulfite-to-cytochrome c an
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12. Purification and Characterization of Acid Phosphatase V from Aspergillus nidulans
Acid phosphatase V of Aspergillus nidulans was purified by ammonium sulfate precipitation, gel filtration, and ion-exchange chromatography. The enzyme demonstrated a charge microheterogeneity on starch and acrylamide gel electrophoresis, but proved to be homogeneous on ultracentrifugation and gel filtration. Phosphatase V was found to be a classic acid ortho