Güncel Gönderiler: Kimya Bölümü
Toplam kayıt 724, listelenen: 201-220
-
Carbonic anhydrase inhibitors: Inhibition of the β-class enzyme from the yeast Saccharomyces cerevisiae with sulfonamides and sulfamates
(Pergamon-Elsevier Science Ltd, 2009)The protein encoded by the Nce103 gene of Saccharomyces cerevisiae, a beta-carbonic anhydrase ( CA, EC 4.2.1.1) designated as scCA, has been cloned, purified, characterized kinetically and investigated for its inhibition ... -
Purification of bovine serum paraoxonase and its immobilization on eupergit C 250 L by covalent attachment
(Informa Healthcare, 2015)Serum paraoxonase (PON1) is a high-density lipoprotein (HDL)-associated enzyme that protects lipoproteins, both low-density lipoprotein (LDL) and HDL, against oxidation, and is considered as an antioxidative/anti-inflammatory ... -
Adsorption of copper (II) ions onto sepiolite and electrokinetic properties
(Elsevier Science Bv, 2009)We investigated the electrokinetic properties of sepiolite Suspensions using the microelectrophoresis technique as a function of pH in the presence of various electrolytes such as, LiCl, NaCl, KCl, Cu(NO(3))(2), CaCl(2), ... -
Carbonic anhydrase activators: Activation of the β-carbonic anhydrase Nce103 from the yeast Saccharomyces cerevisiae with amines and amino acids
(Pergamon-Elsevier Science Ltd, 2009)The protein encoded by the Nce103 gene of Saccharomyces cerevisiae, a beta-carbonic anhydrase (CA, EC 4.2.1.1) designated as scCA, was investigated for its activation with amines and amino acids. scCA was poorly activated ... -
Two new heterodinuclear schiff base complexes: synthesis, crystal structure and thermal studies
(Pergamon-Elsevier Science Ltd, 2015)Two new heterodinuclear Schiff base complexes, [Hg(L)NiCl2(DMF)(2)] 1, and [Zn(L)NiCl2(DMF)(2)] 2, where H2L = N,N'-bis(salicylidene)-1,3-diaminopropane and DMF = dimethylformamide have been synthesized and characterized ... -
Adsorption of casein onto some oxide minerals and electrokinetic properties of these particles
(Elsevier Science Bv, 2015)In this study, the adsorption properties of casein onto some oxide minerals such as sepiolite, kaolinite and expanded and unexpanded perlites samples were studied as a function of concentrations of casein, sodium phosphate ... -
Iron(III) complex of a tridentate NNN type ligand: synthesis, X-ray structure, thermal analysis and voltammetric studies
(Springer, 2009)A mononuclear iron(III) complex with 2,6-bis(3,4,5-trimethyl-N-pyrazolyl)pyridine (btmpp) has been synthesized, and characterized by X-ray crystallography, IR, UV-Vis and TGA-DTA methods. The Fe(III/II) couple was characterized ... -
A novel ligandless-dispersive liquid-liquid microextraction method for matrix elimination and the preconcentration of rare earth elements from natural waters
(Elsevier Science BV, 2015)A new, simple, efficient and rapid separation method based on ligandless-dispersive liquid-liquid microextraction (LL-DLLME) was developed for the preconcentration of rare earth elements (REEs) (La, Ce, Pr, Nd, Sm, Eu, Gd, ... -
Synthesis and Crystal Structure CoNi2(BO3)2
(Maik Nauka/Interperiodica/Springer, 2009)A new metal orthoborate compound, cobalt dinickel orthoborate, CoNi2(BO3)(2) has been successfully synthesized for the first time. The title compound was synthesized by thermally-induced solid-state chemical reaction at ... -
Adsorption of methylene blue onto hazelnut shell: Kinetics, mechanism and activation parameters
(Elsevier Science Bv, 2009)The adsorption kinetics of methylene blue (MB) on the hazelnut shell with respect to the initial dye concentration, pH, ionic strength, particle size and temperature were investigated. The rate and the transport/kinetic ... -
Determination of iron and copper in edible oils by flame atomic absorption spectrometry after liquid-liquid extraction
(Springer, 2015)In the present work, a novel and rapid extraction method for Fe(III) and Cu(II) from liquid edible oils is described. N,N'-Bis(4-methoxysalicylidene)-1,2-diamino ethane (MSE) was utilized for the extraction of metal ions ... -
Removal of cationic dyes by kaolinite
(Elsevier Science Bv, 2009)The removal of cationic dyes such as maxilon yellow 4GL (MY 4GL) and maxilon red GIRL (MR GRL) on kaolinite from aqueous solutions has been studied according to the adsorption method. The adsorbed amount of dyes on kaolinite ... -
Fast microwave synthesis and characterization of MgTi2o5
(Carl Hanser Verlag, 2015)Magnesium dititanate, MgTi2O5 was obtained via a microwave synthesis method. Powder X-ray diffraction, infrared spectroscopy and thermogravimetric/differantial thermal analysis measurements have been used to characterize ... -
Simultaneous preconcentration of cd(II) and pb(II) with n,n '-bis(4-methoxysalicylidene) ethylenediamine coated silica gel prior to determination by flame atomic absorption spectrometry
(Springer International Publishing Ag, 2015)In this paper, a silica gel-based new sorbent was prepared with a Schiff base, called as N,N'-bis(4-methoxysalicylidene) ethylenediamine (MSE). The modified silica gel (Si-MSE) was used for simultaneous separation and ... -
Evaluation of trace metal concentrations in some herbs and herbal teas by principal component analysis
(Elsevier Sci Ltd, 2009)Sixteen trace metallic analytes (Ba, Ca, Ce, Co, Cr, Cu, Fe, K, La, Mg, Mn, Na, Ni, P, Sr and Zn) in acid digests of herbal teas were determined and the data subjected to chemometric evaluation in an attempt to classify ... -
Understanding music pre-service teachers' vocational satisfaction
(Elsevier Science Bv, 2012)People's job satisfaction depends partly on the degree to which their needs and desires are met. People whose needs and values are not met in their job are, in general, are not satisfied and have low motivation and ... -
Hydrothermal synthesis and structural investigation of a new polymorph form of ndbo3
(Amer Inst Physics, 2012)The present work deals with the hydrothermal synthesis of a new polymorph form of neodymium orthoborate, NdBO3. It was obtained by dissolving 0.1875g B2O3 in 20 ml distilled water and later added to 1.8125 g Nd2O3 and the ... -
Substituent effects on the ring-opening mechanism of gem-dibromospiropentanes to related allenes: a theoretical study
(Wiley-Blackwell, 2016)Density functional theory computations at B3LYP and X3LYP levels were performed for ring openings of substituted gem-dibromospiropentanes (R = -H, -Cl, -Br, -CH3, -SiH3, -OH, -OCH3, -CF3, -BF2, and -SH) to related allenes. ... -
Synthesis, crystal structure, magnetic properties and computational study of a series of cyano-bridged Mn-III-Fe-III complexes
(Royal Soc Chemistry, 2012)Different derivatives of the Schiff base (SB) N,N'-bis(2-hydroxybenzylidene)-2,2,-dimethylpropane-1,3,-diamine, LH2, have been used to obtain a series of compounds of which we here report the synthesis, structural determination ... -
Synthesis, structural characterization and thermal properties of a new copper(II) one-dimensional coordination polymer based on bridging n,n '-bis(2-hydroxybenzylidene)-2,2-dimethylpropane-1,3-diamine and dicyanamide ligands
(Int Union Crystallography, 2016)The design and synthesis of polymeric coordination compounds of 3d transition metals are of great interest in the search for functional materials. The coordination chemistry of the copper(II) ion is of interest currently ...