نتایج جستجو برای: sodium tungstate
تعداد نتایج: 188352 فیلتر نتایج به سال:
Tungsten is one of the strategic metals produced from tungsten ores through sodium tungstate. The hydrometallurgical process a common technology for extracting tungstate high-grade concentrates. grade ore decreasing, and mineral processing to produce concentrate suitable becoming more difficult. It desirable develop new effectively recover complex low-grade ores. A fundamental study on pyrometa...
Nucleic acid extracted from environmental samples is an important analyte in instrumental analysis. With respect to the phenomenon which sodium tungstate promotes methane production anaerobic digestion, analyses of microbial community using RNA were conducted; however, we noticed that only concentration measured by absorbance measurement (NanoDrop) was remarkably high. Therefore, this study, DN...
Sodium hydroxide autoclaving is the main method for smelting scheelite in China. In this method, sodium phosphate added as an additive to realize highly efficient decomposition of scheelite, and a crude tungstate solution containing obtained. subsequent process ion exchange, phosphorus ions compete with resin adsorption tungstate, which reduces capacity endangers purity solution. To remove from...
für Naturforschung in cooperation with the Max Planck Society for the Advancement of Science under a Creative Commons Attribution 4.0 International License. Dieses Werk wurde im Jahr 2013 vom Verlag Zeitschrift für Naturforschung in Zusammenarbeit mit der Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. digitalisiert und unter folgender Lizenz veröffentlicht: Creative Commons Namen...
Nickel-tungsten alloys were electrodeposited on stationary working electrodes from a nickel sulfate, sodium tungstate, and tri-sodium citrate-based bath under different operating conditions. The microstructure of the deposits was studied by X-ray diffraction, the morphology by scanning electron microscopy and atomic force microscopy, and the approximate composition by energy dispersive spectros...
Despite the substantial knowledge on the antidiabetic, antiobesity and antihypertensive actions of tungstate, information on its primary target/s is scarce. Tungstate activates both the ERK1/2 pathway and the vascular voltage- and Ca2+-dependent large-conductance BKαβ1 potassium channel, which modulates vascular smooth muscle cell (VSMC) proliferation and function, respectively. Here, we have a...
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