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Showing 1-30 of 34 results for "02553" within Papers
Jie Chen et al.
Physical chemistry chemical physics : PCCP, 15(15), 5664-5669 (2013-03-12)
Phosphomolybdic acid-reduced graphene oxide (PMoA-rGO) nanocomposites are fabricated by a photochemical reduction method. They are characterized by ultraviolet-visible spectra, scanning electron microscope images, Fourier transform infrared spectroscopy, Raman spectra and X-ray photoelectron spectroscopy in order to confirm that oxygen-containing functional
Wei Liu et al.
Free radical biology & medicine, 47(8), 1101-1107 (2009-08-04)
Free radical-induced lipid peroxidation has been implicated in a number of human diseases including atherosclerosis, cancer, and neurodegenerative diseases. F(2)-Isoprostanes (IsoPs) are isomers of prostaglandin PGF(2alpha) that are generated in vivo from the free radical-initiated peroxidation of arachidonic acid independent
Jae-Jin Lee et al.
Current microbiology, 69(3), 286-291 (2014-04-22)
A Gram-negative, short-rod-shaped bacterial strain with gliding motility, designated as DG5A(T), was isolated from a rice field soil in South Korea. Phylogenic analysis using 16S rRNA gene sequence of the new isolate showed that strain DG5A(T) belong to the genus
J K Ahn et al.
Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine, 69(9), 1294-1298 (2011-05-20)
We investigate the caesium concentrations in soils in mountain areas near Gori nuclear power plant in Korea, focusing on the measurement limits to the (134)Cs. In order to lower the minimum detectable amount (MDA) of activity for the (134)Cs, we
Mădălina Vieriu et al.
Revista medico-chirurgicala a Societatii de Medici si Naturalisti din Iasi, 116(4), 1218-1222 (2013-05-25)
Ramipril is a drug of the angiotensin converting enzyme inhibitor class. A new molecular absorbance spectrometric method was developed for the assay of ramipril using molybdophosphoric acid in acidic medium. The reaction product showed a maximum absorbance at 361 nm.
Andriy B Vishnikin et al.
Talanta, 96, 230-235 (2012-07-24)
A highly sensitive, precise and automated method using sequential injection analysis to assay quantitatively low levels of the p-aminophenol (PAP) in paracetamol formulations has been developed. A solution containing PAP and paracetamol is injected into an acetate buffer carrier stream
Gamal Abdel Hafiz Mostafa et al.
Journal of AOAC International, 93(2), 549-555 (2010-05-20)
The construction and electrochemical response characteristics of polyvinylchloride (PVC) membrane sensors for donepezil HCl (DP) are described. The sensing membranes incorporated ion-association complexes of DP cation and sodium tetraphenyl borate (sensor 1), phosphomolybdic acid (sensor 2), or phosphotungstic acid (sensor
Shao-Yu Peng et al.
Taiwanese journal of obstetrics & gynecology, 53(2), 151-157 (2014-07-16)
Liver fibrosis results from the wound healing response to chronic liver damage. Advanced liver fibrosis results in cirrhosis and liver failure, and liver transplantation is often the only option for effective therapy; however, the shortage of available donor livers limits
Zhiming Cui et al.
Physical chemistry chemical physics : PCCP, 14(37), 12823-12828 (2012-08-11)
It is challenging to simultaneously increase double layer- and pseudo-capacitance for supercapacitors. Phosphomolybdic acid/polyaniline/graphene nanocomposites (PMo(12)-PANI/GS) were prepared by using PMo(12) as a bifunctional reagent for not only well dispersing graphene for high electrochemical double layer capacitance but also in
Zhiming Cui et al.
Physical chemistry chemical physics : PCCP, 13(36), 16349-16357 (2011-08-16)
A simple self-assembly approach has been developed to functionalize carbon nanotubes (CNTs) with chitosan (CS) and heteropolyacids (HPAs) of phosphomolybdic acid (H(3)PMo(12)O(40), HPMo) and phosphotungstic acid (H(3)PW(12)O(40), HPW). The non-covalent functionalization method, which introduces homogenous surface functional groups with no
Almino Afonso de O Paiva et al.
International immunopharmacology, 11(9), 1241-1250 (2011-04-21)
This study analyzes the action of sulfated polysaccharides, fucans, from algae Lobophora variegata on zymosan-induced arthritis in rats. Groups of fucans, obtained after acetone fractionation (0.3-2.0 volumes), were denominated F0.3, F0.5, F0.8, F1, F1.5, and F2. The results that F1
Marwa S El Hamshary et al.
Analytical sciences : the international journal of the Japan Society for Analytical Chemistry, 26(4), 437-442 (2010-04-23)
Two ion-selective sensors of the plastic membrane type were prepared for the determination of oxybutynin hydrochloride (OxCl). They depend on the incorporation of the ion-associates with phosphotungestic acid or phosphomolybdic acid in a PVC matrix. A comparative study is made
Steven G Swarts et al.
Advances in experimental medicine and biology, 701, 291-297 (2011-03-30)
Fifty-eight semicarbazone and pyrazole derivatives of curcumin have been developed as potential mitigation agents to treat acute radiation syndrome (ARS). Pyridyl (D12, D13), furyl (D56), and phenyl (D68) derivatives of curcumin semi-carbazones were found to provide the highest dose modifying
Andreea Elena Muraraşu et al.
Revista medico-chirurgicala a Societatii de Medici si Naturalisti din Iasi, 114(1), 249-254 (2010-06-01)
A turbidimetric method was developed for tenoxicam quantification using the complexing reaction with molybdophosphoric acid in hydrochloric acid medium; the complex has a maximum of absorbance at 369 nm. The practical working conditions were established. In the 2.5 division by
Alexander O Terent'ev et al.
Organic & biomolecular chemistry, 11(16), 2613-2623 (2013-03-01)
Phosphomolybdic acid (PMA) and phosphotungstic acid (PTA) efficiently catalyze the addition of H2O2 to β-diketones to form bridged 1,2,4,5-tetraoxanes. These reactions are not accompanied by the formation of monocyclic peroxides containing hydroxy and hydroperoxide groups or polymeric peroxides. The use
Thomas Lunkenbein et al.
Journal of the American Chemical Society, 134(30), 12685-12692 (2012-07-05)
Nanostructured inverse hexagonal polyoxometalate composite films were cast directly from solution using poly(butadiene-block-2-(dimethylamino)ethyl methacrylate) (PB-b-PDMAEMA) diblock copolymers as structure directing agents for phosphomolybdic acid (H(3)[PMo(12)O(40)], H(3)PMo). H(3)PMo units are selectively incorporated into the PDMAEMA domains due to electrostatic interactions between
Maher Mahmoud El-Hashash et al.
Acta pharmaceutica (Zagreb, Croatia), 60(3), 361-367 (2010-12-08)
In the present study, antioxidant activity of methanolic extracts of the leaves of seven Egyptian Cassia species was investigated using two methods, the phosphomolyb-date method and 1,1 diphenyl-2-picrylhydrazyl radical (DPPH) scavenging activity method.· The results revealed that C. glauca is
Fabrication and electrocatalytic activities of porphyrin and 12-molybdophosphoric acid hybrid films.
Dawei Fan et al.
Journal of colloid and interface science, 351(1), 151-155 (2010-08-19)
Hybrid films composed of oppositely charged Keggin-type 12-molybdophosphoric acid H(3)PMo(12)O(40).nH(2)O (PMo(12)) and water-soluble cationic meso-tetra (N-methyl-4-pyridyl) porphinetetratosylate (TMPyP) were fabricated onto silicon and ITO substrates by a layer-by-layer (LbL) self-assembly technique. The LbL films were characterized by UV-vis spectroscopy, X-ray
Oleg Zui et al.
Talanta, 78(3), 1185-1189 (2009-03-10)
Interaction of luminol with phosphomolybdic, phosphovanadomolybdic and silicomolybdic acids was studied by examination of chemiluminescence spectra, measurement of ESR spectra, investigation of reaction order, and elucidation of inhibition effects. A scheme of the reaction mechanism is proposed.
Rasha M El-Nashar et al.
Analytica chimica acta, 730, 99-111 (2012-05-29)
This work offers construction and comparative evaluation the performance characteristics of conventional polymer (I), carbon paste (II) and carbon nanotubes chemically modified carbon paste ion selective electrodes (III) for meclofenoxate hydrochloride are described. These electrodes depend mainly on the incorporation
Juan Feng et al.
Analytical biochemistry, 409(1), 144-149 (2010-10-26)
The classical malachite green (MLG) assay of phosphate, which added MLG after molybdate to the acidified reaction solutions of phosphate, tolerated interference from papaverine, sildenafil, and some similar hydrophobic amines. Resonance Rayleigh scattering signals, the alleviation of interference by poly(vinyl
Jung Ho Choi et al.
Journal of nanoscience and nanotechnology, 11(7), 6533-6538 (2011-11-30)
Scanning tunneling microscopy (STM) and tunneling spectroscopy studies of nano-structured H6P2MoxW(18-x)O62 (x = 0, 3, 9, 15, 18) Wells-Dawson heteropolyacids (HPAs) were carried out to examine redox properties of the HPAs. STM images of H6P2MoxW(18-x)O62 HPAs clearly showed self-assembled and
Rubel Chakravarty et al.
Journal of chromatography. A, 1220, 82-91 (2011-12-27)
Barium-137m availed from a (137)Cs/(137m)Ba generator is an attractive industrial radiotracer for liquid flow rate measurement owing to its short half-life (T(1/2)=2.5 min) and emission of highly energetic gamma radiation (E(γ)=661.7 keV). Ammonium molybdophosphate (AMP) impregnated alumina microspheres (AMP-Al(2)O(3)), an
Sathiyaraj Srinivasan et al.
Antonie van Leeuwenhoek, 106(2), 271-278 (2014-05-23)
Strain SR-1(T), a Gram-positive, strictly-aerobic, short-rod shaped, non-motile bacterium, was isolated from a mountain soil collected in Seoul Women's University in South Korea. Growth occurred between 15 and 37 °C (optimum, 30 °C), at pH 6.0-9.0 (optimum, pH 7.0) and with 0-2 %
Ahmed K Hassan et al.
Analytical sciences : the international journal of the Japan Society for Analytical Chemistry, 25(11), 1295-1299 (2009-11-13)
Trifluoperazine is widely used in the treatment of psychotic patients for its neuroleptic and antidepressive action. In this study, the construction, evaluation and application of new potentiometric sensors for trifluoperazine hydrochloride (TFPH) are described. The sensing membranes incorporated either ion-pair
B Simonovska et al.
Journal of chromatography. A, 903(1-2), 219-225 (2001-01-12)
A high-performance thin-layer chromatographic (HPTLC) method for the determination of the two main potato glycoalkaloids, alpha-chaconine and alpha-solanine, in different parts of the potato plant, is described. Samples were extracted with diluted aqueous acetic acid containing the ion-pairing reagent 1-pentanesulfonic
Paweł K Zarzycki et al.
Analytica chimica acta, 688(2), 168-174 (2011-02-22)
The main goal of present paper is to demonstrate the separation and detection capability of micro-TLC technique involving simple one step liquid extraction protocols of complex materials without multi-steps sample pre-purification. In the present studies target components (cyanobacteria pigments, lipids
B Shyla et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 78(1), 497-502 (2010-12-15)
A simple spectrophotometric method is developed here for the determination of phosphate present in the samples of soil, detergents, water, bone and food based on the formation of phosphomolybdate complex with the added molybdate followed by the reduction of the
Andrey V Bulatov et al.
Talanta, 96, 62-67 (2012-07-24)
Simple, rapid and fully automated methods for the manual and automated spectrophotometric determination of epinephrine have been developed by using schemes of stepwise injection (SWIA) and sequential injection analysis (SIA) implemented in the same manifold. The determination is based on
Formation of molybdate ion clusters by phosphomolybdic anions under matrix-assisted laser desorption/ionization conditions in the gas phase.
Rui-Feng Xu et al.
Journal of mass spectrometry : JMS, 48(3), 348-351 (2013-03-16)
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