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Приказ резултата 31-40 од 521
3-Cyanopropylsiloxane-Bonded Silica Gel: Characteristics and Applications in Thin-Layer Chromatography
(Akademiai Kiado Rt, Budapest, 2015)
An overview of the adsorption characteristics of 3-cyanopropylsiloxane-bonded silica gel as a specific, moderately polar sorbent which can be used for separation of different classes of organic and inorganic substances in ...
Investigation of sorbents synthesised by mechanical-chemical reaction for sorption of As(III) and As(V) from aqueous medium
(Springer, New York, 2014)
Efficiency of Fe2O3 and mixture of Fe2O3 and MnO2 nanoparticles synthesised by mechanical-chemical reaction for inorganic As(III) and As(V) sorption was examined. Sorbents (Fe2O3 and mixture Fe2O3:MnO2 = 3:1) synthesised ...
Non-covalent Stabilization in Transition Metal Coordination and Organometallic Complexes
(Non-covalent Interactions in the Synthesis and Design of New Compounds, 2016)
Non-covalent interactions (NCIs) are ubiquitous in nature, and the demonstration of their role in transition metal chemistry remains a vivid domain of research. Indeed, a better understanding of the interplay of NCIs with ...
Boron-doped diamond electrochemical sensor for sensitive determination of nicotine in tobacco products and anti-smoking pharmaceuticals
(Elsevier Science Sa, Lausanne, 2014)
A sensitive, selective and reliable electrochemical method for the determination of nicotine using differential pulse voltammetry on a bare boron-doped diamond electrode has been developed. Nicotine yielded a single oxidation ...
Recycling of silver-plated brass for production of high purity copper and ultrafine silver powder for electric contacts
(Bulgarian Acad Science, Sofia, 2014)
The paper presents an improved process for recycling of silver-plate brass housing. Silver and copper are recovered with a purity of 99.99 % and 99.90 %, respectively, with the aim of obtaining materials of higher value ...
Pattern recognition methods and multivariate image analysis in HPTLC fingerprinting of propolis extracts
(Wiley-Blackwell, Hoboken, 2014)
High-performance thin-layer chromatography (HPTLC) combined with image analysis and pattern recognition methods were used for fingerprinting and classification of 52 propolis samples collected from Serbia and one sample ...
Synthesis and structural characterization of the Co(III) complex with 2 '-[1-(2-pyridinyl)-ethylidene]oxamohydrazide (Hapsox): The crystal structure of bis-{2 '-[1-(2-pyridinyl)-ethylidene]-oxamohydrazido} cobalt(III) perchlorate, [Co(apsox)(2)]ClO4
(Taylor & Francis Ltd, Abingdon, 2003)
The synthesis of a novel ligand 2'-[1-(2-pyridinyl)-ethylidene]-oxamohydrazide (Hapsox), from a series of 2-acetylpyridine acylhydrazones, and its complex with Co(III), which is the first in this series of complexes are ...
5-Aryl-1H-pyrazole-3-carboxylic acids as selective inhibitors of human carbonic anhydrases IX and XII
(Pergamon-Elsevier Science Ltd, Oxford, 2015)
Inhibitory activity of a congeneric set of 23 phenyl-substituted 5-phenyl-pyrazole-3-carboxylic acids toward human carbonic anhydrase (hCA, EC 4.2.1.1) isoforms I, II, IX and XII was evaluated by a stopped-flow CO2 hydrase ...
Biotransformation of 4-halophenols to 4-halocatechols using Escherichia coli expressing 4-hydroxyphenylacetate 3-hydroxylase
(Springer, New York, 2011)
Escherichia coli cells, expressing 4-hydroxyphenylacetate 3-hydroxylase, fully transformed 4-halogenated phenols to their equivalent catechols as single products in shaken flasks. 4-Fluorophenol was transformed at a rate ...
Leaching of toxic elements from secondary alkaline lead slag and stabilized/solidified products
(Springer Japan, 2019)
Secondary alkaline lead slag (SALS), generated during lead–acid batteries recycling, is a hazardous waste due to its high reactivity, solubility, and migration of toxic elements. After pulverization caused by storage under ...