Ara
Toplam kayıt 30, listelenen: 21-30
Separation of catechins and methylxanthines in tea samples by capillary electrochromatography
(2009)
In this paper, the simultaneous separation of several polyphenols such as (+)-catechin, (-)-epicatechin, (-)-epigallocatechin, theophylline, caffeine in green and black teas by capillary electrochromatography (CEC) was ...
A quantitative method of photoadsorption determination for irradiated catalyst in liquid-solid system
(Elsevier Science BV, 2009)
A method for determining the amount of substrate adsorbed onto the catalyst surface in liquid-solid photocatalytic system under reaction conditions (photoadsorption) is proposed. The method has been applied to the ...
Crystal structure of 2-[2-(2-aminophenoxy)ethoxy]-N-[(1E)-2,3,5,6,8,9,11,12-octahydro-1,4,7,1 0,13-benzopentaoxacyclopentadecin-15-ylmethylene]aniline
(Japan Society for Analytical Chemistry, 2006)
The title compound, C29H34N2O7, is a substituted monotopic benzo-15-crown-5-ether ligand. It belongs to the space group P21/a with cell parameters a = 8.9857(6), b = 25.0353(17), c = 12.6979(9)Å and ß = 109.730(1)o. The ...
The synthesis, characterization and structural analysis of a Co(III) complex of 1,10-phenanthroline and perfluorosebacic acid, [Co(HL)(phen) 2(H2O)]L·H2O
(Verlag der Zeitschrift fur Naturforschung, 2006)
The hexacoordinated mononuclear Co(III) complex 1, [Co(HL)(phen) 2(H2O)]L·H2O, with the mixed ligands (H2L = HO2C(CF2)8CO2H and 1,10-phenantroline) has been synthesized and characterized by elemental analysis, IR and UV/vis ...
Selective separation of uranium containing glutamic acid molecular-imprinted polymeric microbeads
(Marcel Dekker Inc, 2003)
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Evaluation of polymer-supported rhodium catalysts in 1-octene hydroformylation in supercritical carbon dioxide
(American Chemical Society, 2003)
Supercritical CO2 has been used as a benign solvent in the hydroformylation of 1-octene using a Rh-based catalyst. The catalyst is attached to a polymer backbone that has fluoroacrylate branches that make it soluble in ...
Photocatalytic oxidation of aromatic alcohols to aldehydes in aqueous suspension of home prepared titanium dioxide 2. Intrinsic and surface features of catalysts
(Elsevier Science BV, 2008)
In this paper some intrinsic electronic properties of home prepared (HP) TiO2 Catalysts were investigated by diffuse reflectance spectroscopy and quasi-Fermi level measurements. These powders were used for carrying out the ...
Preconcentration of Fe(III) using Fe(III)-Ion imprinted polymeric traps and its analytical performance for FAAS
(2007)
Novel Fe(III)-imprinted beads were prepared by molecular imprinting technique for selective solid-phase extraction (SPE) of Fe(III) ions prior to its determination by flame atomic absorption spectrometry (FAAS). The ...
Reverse atom transfer radical polymerization of stearyl methacrylate using 2,2'-azobisisobutyronitrile as the initiator
(2002)
The living/controlled radical polymerization of stearyl methacrylate was carried out with a conventional radical initiator (2,2'-azobisisobutyronitrile) in N,N-dimethylformamide in the presence of a 2,2'-bipyridine complex ...
Photodegradation of pharmaceutical drugs in aqueous TiO2 suspensions: Mechanism and kinetics
(Elsevier Science BV, 2007)
The degradation and mineralization of Tamoxifen (TAM) and Gemfibrozil (GEM) drugs, whose molecular structures exhibit ethereal bonds, have been carried out by irradiating aqueous suspensions of TiO2 with near-UV light at ...