Ammonium Molybdate
Ammonium Molybdate - Related Videos
09:50
Electrochemically and Bioelectrochemically Induced Ammonium Recovery
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Cited by 31 •
2015
We demonstrate the extraction of ammonium from an ammonium-rich stream using an electrochemical and a bioelectrochemical system. The reactor setup, operation and data analysis are discussed.
01:25
Isolation of Ammonium-Oxidizing Iron Reducers from a Wetland Soil–Derived Enrichment Culture
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2025
Begin with a wetland soil-derived enrichment culture containing bacterial communities.The culture exhibits Feammox activity, ammonium oxidation coupled to ferric iron reduction, indicating the enrichment of a bacterium capable of this metabolic process.Serially dilute the culture using media.Streak the diluted samples onto test agar plates supplemented with ferric iron and ammonium.Use control plates that lack either ferric iron or ammonium, or contain ferric iron with organic carbon instead of...
08:53
Synthesizing Sodium Tungstate and Sodium Molybdate Microcapsules via Bacterial Mineral Excretion
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2018
This work presents a protocol for manufacture sodium tungstate and sodium molybdate microcapsules via bacteria and their corresponding nanoparticles.
06:35
Construction and Systematical Symmetric Studies of a Series of Supramolecular Clusters with Binary or Ternary Ammonium Triphenylacetates
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Cited by 1 •
2016
This article describes construction of a series of hydrogen-bonding supramolecular clusters in crystals using primary ammonium triphenylacetates, which are recrystallized from non-polar solvents. This selective construction of the supramolecular clusters leads to effective systematical symmetric studies about a correlation between the supramolecular clusters and their components.
02:18
Visualization and Size Assessment of Faustovirus Using Electron Microscopy
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2026
Source: Bou Khalil, J. Y., et al. A Rapid Strategy for the Isolation of New Faustoviruses from Environmental Samples Using Vermamoeba vermiformis. J. Vis. Exp. (2016).This video demonstrates imaging of faustovirus particles from an infected amoeba culture using transmission electron microscopy. It covers grid preparation, negative staining with ammonium molybdate to enhance contrast, and visualization of the virus under the microscope. The protocol concludes with measuring the size of the...
FAQs
Acidic conditions promote the reaction between molybdate ions and phosphate, producing a phosphomolybdate complex. This intermediate is important because it converts phosphate, an otherwise difficult target to track directly in the assay chemistry, into a species that can undergo reduction. The sequence links phosphate present in a biological sample with a measurable analytical response.
Reduction transforms the phosphomolybdate complex into a blue-colored product, creating the visible signal used for measurement. The intensity of this color provides the basis for detecting and quantifying phosphate in samples. Without this conversion, the phosphate-related reaction would not produce the characteristic colorimetric response described for the assay.
Controlled reactivity supports two distinct research roles. The acid-dependent reaction with phosphate enables analytical assays, whereas molybdenum supplementation is used to investigate molybdenum-dependent enzymes. Keeping these roles separate helps researchers interpret a blue assay signal as phosphate-related rather than as direct evidence of enzyme activity or nutrient metabolism.
A sample is brought into acidic conditions so its phosphate can react with molybdate ions and form a phosphomolybdate complex. The complex is then reduced, producing a blue color. Researchers use that colorimetric response to detect or quantify phosphate. The source material supports this chemical sequence but does not specify particular reagent concentrations, instruments, or timing.
The blue color is the measurable outcome of the phosphate-related reaction. Its presence supports phosphate detection, and the colorimetric signal can be used for phosphate quantification in biological samples. This makes the chemistry useful when research requires an analytical readout of phosphate rather than a direct assessment of molybdenum-dependent enzyme function.
Molybdenum supplementation is useful when researchers want to investigate molybdenum-dependent enzymes and related biological systems. The overview identifies nitrate reductase and nitrogenase systems as examples, linking the element to nutrient metabolism and microbial physiology. This application differs from phosphate colorimetry because the focus is enzyme function or cellular physiology rather than phosphate measurement.