Phosphotungstic Acid
Fabrication and Characterization of Novel Crosslinked Composite Membranes for Direct Methanol Fuel Cell Application – Part I. Poly (Vinyl Alcohol-Co-Vinyl Acetate-Co-Itaconic Acid)/ Phosphotungstic Acid Based Membranes
... alcohol/phosphotungtic acid polymer electrolytes in the order of 10 -3 .../phosphotungstic acid and Thanganathan et ...oxide), phosphotungstic acid composite ...
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Photocatalytic Degradation of Organic Dye Methyl Orange with Phosphotungstic Acid
... efficient decomposition ability for organic pollutants under irradiation with UV light with wavelength shorter than 387 nm [5-7]. In the same way, many POM systems share the same general photochemical characteristics as ...
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Keggin Structure and Surface Acidity of 12 Phosphotungstic Acid Grafted Zr MCM 48 Mesoporous Molecular Sieves
... In the present work, we describe an approach for double modifications of Si-based MCM-48 by frame- work substitution by Zr ions and surface grafting with 12-phosphotungstic acid. Introducing zirconium ions ...
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Phosphotungstic acid loaded sodium alginate membranes for enhanced Pervaporative dehydration of Isopropanol
... advantages, PWA-loaded Sodium alginate membrane is selected to investigate the PV separation of Isopropanol. Three membranes were fabricated unfilled pristine sodium alginate membrane and two MMMs incorporated with 5, 10 ...
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Low Molecular Weight Chitosan from Shrimp Shell Waste Using Steam-Explosion Process Under Catalyst of Phosphotungstic Acid
... with phosphotungstic acid doesn’t show any structural damage, this demonstrated that the structures of the main chain of chitosan and LWCS have same functional group, obtained by FTIR spectra ...
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Phosphotungstic Acid Supported on Magnetic Nanoparticle Used As Selective and Reusable Photocatalyst for Aerobic Oxidation of Benzylic Alcohols
... the phosphotungstic acid supported on imidazole functionalized silica coated cobalt ferrite nanoparticles (PTA/Si-imid@ Si-MNPs) was used, for the first time, as an efficient and magnetically recyclable ...
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Synthesis of n-Butyl Lactate by Transition-Metal-Substituted Phosphotungstic Acid Salt
... lactic acid, and cyclohexane water-carrying agent were added with magnetic stirring, the device was equipped with thermometer refluxing condenser tube and water segregator in atmospheric pressure in several ...
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Mixed Matrix Membranes Of Sodium Alginate And Hydroxy Propyl Cellulose Loaded With Phosphotungstic Heteropolyacid For The Pervaporation Separation Of Water Isopropanol Mixtures At 300 C
... In recent times several workers developed MMMs by incorporating metal containing heteropoly acids (HPAs) for the PV separation of alcohol-water mixtures [5- 12].Heteropoly acids (HPAs) are the widely used inorganic ...
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Synthesis, characterization and antimicrobial evaluation of novel compounds 1( benzo[d]oxazol/thiazol 2 yl) methyl 6 phenoxy 4,8 dihydro 1H [1,3,2] dioxaphosphepino[5,6 d]imidazole 6 oxide
... A suspension of 1-H-Imidazole-4, 5-dimethanol (1Mmole) was dissolved in acetone (5ml) and 2, 2-dimethoxy propane (DMP, 2Mmole) solvent mixture. To the reaction mixture phosphotungstic acid (PTA, 5mole %) ...
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THE PLASMA VITAMIN B12 BINDING SUBSTANCE: I ITS DETECTION IN THE SEROMUCOID FRACTION OF PLASMA FROM NORMAL SUBJECTS AND PATIENTS WITH CHRONIC MYELO CYTIC LEUKEMIA
... The fact that most of the radioactive B12 bound to plasma either in vitro or in vivo could be recovered in the phosphotungstic acid precipitate of a perchloric acid filtrate in both norm[r] ...
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Enhanced imaging of lipid rich nanoparticles embedded in methylcellulose films for transmission electron microscopy using mixtures of heavy metals
... When phosphotungstic acid was included in the MC as a single contrasting agent, more intense staining of the liposome surfaces was observed (this was likely due to ionic binding to the positively charged ...
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The effect of NaCl substitution with KCl on Akawi cheese: Chemical composition, proteolysis, angiotensin-converting enzyme-inhibitory activity, probiotic survival, texture profile, and sensory properties
... [phosphotungstic acid (PTA)-soluble nitrogen (SN) and TCA-SN contents] between experi- mental cheeses made using partial substitution of NaCl with KCl compared with the ...
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Journal of Applied Pharmaceutical Science
... peroxidation chain reactions (Pacifico et al., 2015). Liquid chromatography with various detection techniques has been widely used to determine phenolic acids. Because of the high sensitivity and selectivity, HPLC ...
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... palimitic acid, palmitoleic acid, stearic acid, oleic acid, linoleic acid, alpha linoleic acid, arachidic acid, eicosanoic acid, behenic acid, and erucic ...
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In Vitro Metabolite Colonic Production from Otili (Sphenostylis stenocarpa) as Influenced by Selected Gastrointestinal Microbes
... 2.5. Gas Chromatography-Mass Spectrometry (Gc-Ms) Analysis The volatile constituents were analyzed with an Agilent 5975C VL mass selective detector coupled to an Agilent 7890A gas chromatograph (Agilent Technologies, ...
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Formation of carboxylic acids during degradation of monosaccharides
... d-tetronic acid having erythro- and threo-configuration were found, but they were not differentiated because they possessed identical MS ...formic acid is assumed to be also involved during sugar oxidation ...
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Natural Antioxidant Changes in Fresh and Dried celery (Apium graveolens)
... chlorogenic acid, syringic acid, caffeine , p- coumaric acid, ferulic acid, salycilic acid, cinnamic acid, chrysin, pyrogallol , ellagic acid , catechin and caffeic ...
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Gas Chromatography-Mass Spectrometry Analysis of the Anti-MRSA Fractions of Chromolaena odorata (L.) R.M. King & H. Rob. leaves
... donebecause it was not distinctly isolated) showed anti- MRSA activities at 2.0 mg/ml. The least mean zone of inhibition against MRSA isolates was 8.0 mm for F5 and the highest was 22.5 mm for F2 and F3. There was ...
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ANTIBACTERIAL ACTIVITY AND GCMS ANALYSIS OF THE EXTRACT OF LEAVES OF RHIZOPHORA APICULATA (A MANGROVE PLANT)
... Ursolic acid was reported to be cytotoxic against A- 549, L-1210 and KB tumour cells (Yamagishi et ...oic acid was found to exhibit anti-ulcer properties (Fourie et ...palmitic acid as major ...
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Mechanistic and stereochemical studies on methylaspartase and glutamate mutase
... Component S containing fractions could not be identified by assaying for glutamate mutase activity, as the component was not active without Component E. Thus, molecular weight determination by SDS-P A G E components to ...
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