نتایج جستجو برای: sodium tungstate

تعداد نتایج: 188352  

Journal: :The Journal of biological chemistry 1956
J HESS E KITO R P MARTIN J F VAN PILSUM

The non-specific analytical methods for the guanidinium compounds in biological fluids have been unsatisfactory for many years. The methods presented in this paper have a greatly improved specificity and are not too complex for use in the clinical laboratory. A modified Sakaguchi color reaction for substituted guanidines is used in each procedure. Guanidinoacetic acid is measured by developing ...

Journal: :Applied and environmental microbiology 1989
K Koenig J R Andreesen

An organism identified as Pseudomonas putida was isolated from an enrichment culture with 2-furoic acid as its sole source of carbon and energy. The organism contained a 2-furoyl-coenzyme A (CoA) synthetase to form 2-furoyl-CoA and a 2-furoyl-CoA dehydrogenase to form 5-hydroxy-2-furoyl-CoA as the first two enzymes involved in the degradation. Tungstate, the specific antagonist of molybdate, de...

Journal: :Geochimica et Cosmochimica Acta 2022

Tungsten (VI) speciation in hydrothermal solutions is investigated through in-situ Raman spectroscopy coupled with the fused silica glass capillary technique at temperatures up to 400 °C. The effect of temperature, pH, chlorinity and carbonate are evaluated systems highly soluble salts Na2WO4 Na6W12O39. At all temperatures, tungstate ion WO42? (927 cm?1) only W species solution pH > 10. a given...

Journal: :ChemSusChem 2012
Rachel L Chamousis Frank E Osterloh

A solar-energy-driven biomass fuel cell for the production of electricity from wastewater using only air and light as additional resources is described. The device consists of a photoelectrochemical cell that contains a nanostructured titanium dioxide or tungsten trioxide film as photoanode and a platinum air electrode as cathode, in separate compartments. The TiO(2) or WO(3) films are fabricat...

Journal: :Journal of Nuclear Science and Technology 1968

Journal: :Acta Crystallographica 1963

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