نتایج جستجو برای: molybdenum blue method

تعداد نتایج: 1700770  

2003
J. H. Roe

In 1926 Campbell and Hanna (1) published a method for the determination of fructose based upon the reduction of molybdenum in phosphoric acid solution and the reoxidation of the reduced molybdenum with potassium permanganate. This method is not entirely specific for fructose; other substances in blood and urine have some reducing action upon the molybdic acid reagent. The method will not permit...

Journal: :The Journal of Physical Chemistry A 2013

2011
Ragaa El-Shiekh Magda Akl Wael Ali Ayman Gouda

Two rapid, simple and sensitive extractive specrophotometric methods has been developed for the assay of Hyoscine butyle bromide (HBB), losartan potassium (LSR) and Sertaline HCl (SER) in bulk and in their pharmaceutical formulations. The proposed methods depend upon the reaction of cobalt(II)–thiocyanate (method A) and molybdenum(V)–thiocyanate ions (method B) with the cited drugs to form stab...

2003
V. Hornebecq Y. Mastai M. Antonietti S. Polarz

Encapsulation of molybdenum oxide MoO3 into ordered mesoporous silica materials is demonstrated using different synthetic routes. Either supramolecular polyoxometalates of the “Müller type” or Na2MoO4 were used as precursors. Molybdenum oxide (MoO3)-silica hybrid materials were characterized using nitrogen-sorption experiments, transmission electron microscopy, small-angle X-ray scattering, and...

Journal: :نشریه دانشکده فنی 0
بهروز قاسمی جلیل وحدتی خاکی مسعود گودرزی

the molybdenum dicilicide is an intermetallic compound with two allotropies tetragonal ?-mosi2 and hexagonal ?-mosi2.the ?-mosi2 phase is established to 1900 ?c and ?-mosi2 phase from 1900 to 2050 ?c. this material has considerable properties that provide different applications in different industries such as air-space industry and gas turbines. the molybdenum synthesis can be down in various w...

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