Güncel Gönderiler: PubMed İndeksli Yayınlar Koleksiyonu
Toplam kayıt 1498, listelenen: 501-520
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Utilization of the Phaseolus vulgaris L. waste biomass for decolorization of the textile dye Acid Red 57: determination of equilibrium, kinetic and thermodynamic parameters
(Taylor & Francis Inc, 2007)In the present study, biosorption of Acid Red 57 (AR57) onto a waste biomass of Phaseolus vulgaris L. was investigated by varying pH, contact time, biosorbent concentration and temperature, to determine the equilibrium, ... -
Kinetics and equilibrium studies for the adsorption of Acid Red 57 from aqueous solutions onto calcined-alunite
(Elsevier Science BV, 2006)The adsorption of Acid Red 57 (AR57) onto calcined-alunite was examined in aqueous solution in a batch system with respect to contact time. pH and temperature. The first-order, pseudo-second-order Kinetic and the intraparticle ... -
Hydrogen bonding and dimeric self-association of 2-pyrrolidinone: An ab initio study
(Kluwer Academic Publ, 1999)Ab initio calculations on the different associated structures of 2-pyrrolidinone with water and with itself were carried out using 3-21G and 6-31G(*) basis sets at the Hartree-Fock level, including electron correlation ... -
Synthesis and spectroscopic characterization of new Schiff bases containing the benzo-15-crown-5 moiety
(Molecular Diversity Preservation International, 2004)New crown ether Schiff base derivatives were prepared by the condensation of 4'-formylbenzo-15-crown- 5 or 4'-formyl-5'-hydroxybenzo-15-crown-5 with 1,2-bis(2aminophenoxy)ethane. The structures of these new compounds were ... -
A comparative adsorption study of C2H4 and SO2 on clinoptilolite-rich tuff: Effect of acid treatment
(Elsevier Science BV, 2013)In this study, ethylene (C2H4) and sulphur dioxide (SO2) adsorption properties of clinoptilolite tuff from Gordes, Turkey and that of acid treated forms were studied at 293 K using volumetric apparatus up to 38 and 100 ... -
Modification of bentonite with a cationic surfactant: An adsorption study of textile dye Reactive Blue 19
(Elsevier Science BV, 2007)The utilization of modified bentonite with a cationic surfactant (dodecyltrimethylammonium (DTMA) bromide) as an adsorbent was successfully carried out to remove a synthetic textile dye (Reactive Blue 19 (RB 19)) by ... -
Adsorption of acid dyes from aqueous solutions onto acid-activated bentonite
(Academic Press Inc Elsevier Science, 2004)The adsorption of two dyes, namely, Acid Red 57 (AR57) and Acid Blue 294 (AB294), onto acid-activated bentonite in aqueous solution was studied in a batch system with respect to contact time, pH, and temperature. Acidic ... -
Synthesis, spectral studies of salicylidine-pyridines: Crystal and molecular structure of 2-[(1E)-2-aza-2-(5-methyl (2-pyridyl)ethenyl)]-4-bromobenzen-1-ol
(Pergamon-Elsevier Science LTD, 2007)Schiff bases derived from different meta-substituted salicylaldehyde and 5-methylaminopyridine have been synthesized and characterized by elemental analysis, FT-IR, NMR and UV-vis techniques. NMR assignments were made using ... -
Adsorption of Acid Blue 193 from aqueous solutions onto DEDMA-sepiolite
(Elsevier Science BV, 2006)The adsorption of Acid Blue 193 (AB 193) onto dodecylethyldimethylammonium (DEDMA)-sepiolite was investigated in aqueous solution in a batch system with respect to contact time, pH and temperature. The surface modification ... -
Phosphorus-nitrogen compounds: Synthesis and spectral investigations on new spiro-cyclic phosphazene derivatives
(Pergamon-Elsevier Science LTD, 2007)The condensation reaction of {N-[(2-hydroxyphenylmethyl)amino]-4,6-dimethylpyridine} (2), which is a reduction product of 1, with trimer N3P3Cl6 affords partially a substituted spiro-cyclic phosphazene derivative (3). The ... -
Comparison of supercritical fluid and Soxhlet extractions for the quantification of hydrocarbons from Euphorbia macroclada
(Elsevier Science BV, 2004)This study compares conventional Soxhlet extraction and analytical scale supercritical fluid extraction (SFE) for their yields in extracting of hydrocarbons from arid-land plant Euphorbia macroclada. The plant material was ... -
Adsorption of Acid Blue 193 from aqueous solutions onto Na-bentonite and DTMA-bentonite
(Academic Press Inc Elsevier Science, 2004)Dodecyltrimethylammonium bromide-modified bentonite (DTMA-bentonite) was prepared and tested as an adsorbent for an acid dye (Acid Blue 193, AB 193) removal from aqueous solution in comparison with Na-bentonite. The effect ... -
Adsorption of Acid Red 57 from aqueous solutions onto surfactant-modified sepiolite
(Elsevier Science BV, 2005)The adsorption of Acid Red 57 (AR57) onto surfactant-modified sepiolite was investigated in aqueous solution in a batch system with respect to contact time, pH and temperature. The surface modification of surfactant-modified ... -
Mimicking receptor for methylmercury preconcentration based on ion-imprinting
(Elsevier Science BV, 2007)Solid-phase extraction (SPE) based on molecularly imprinted polymers (MIPs) were used to develop selective separation and preconcentration for methylmercury ion from complex matrixes. In this study, an ion-imprinting polymer ... -
A new metal chelate affinity adsorbent for Cytochrome c
(Wiley, 2004)We have prepared a novel metal-chelate adsorbent utilizing N-methaeryloyl-L-histidine methyl ester (MAH) as a metal-chelating ligand. MAH was synthesized by using methacryloyl chloride and L-histidine methyl ester ... -
Molecularly imprinted ligand-exchange recognition assay of glucose by quartz crystal microbalance
(Elsevier Advanced Technology, 2005)Molecular imprinted polymers (MIP) as a recognition element for sensors are increasingly of interest and MIP-quartz crystal microbalance (QCM) have started to appear in the literature. In this study, we have combined quartz ... -
Creation of recognition sites for organophosphate esters based on charge transfer and ligand exchange imprinting methods
(Elsevier Science BV, 2006)This manuscript describes a method for the selective binding behavior of paraoxan and parathion compounds on surface imprinted polymers which were prepared using both charge transfer (CT) (methacryloyl-antipyrine, MAAP) ... -
L-histidine imprinted synthetic receptor for biochromatography applications
(American Chemical Society, 2006)We have proposed novel surface-imprinted beads for selective separation of cytochrome c (cyt c) by N-methacryloyl(L)-histidine-copper(II) [MAH-Cu(II)] as a new metal-chelating monomer via metal coordination interactions ... -
Tetrakis[mu-4-(methylamino)benzoato-kappa O-2:O ']bis[(N,N-diethylnicotinamide-N-1)zinc(II)] dihydrate
(Int Union Crystallography, 2009)The title molecule, [Zn-2(C8H8NO2)(4)(C10H14N2O)(2)]center dot 2H(2)O, is a centrosymmetric binuclear complex, with two Zn-II ions [Zn center dot center dot center dot Zn' = 2.9301 (4) angstrom] bridged by four methylaminobenzoate ... -
Diaquabis(2-bromobenzoato-kappa O)bis(N,N-diethylnicotinamide-kappa N-1)nickel(II)
(Int Union Crystallography, 2009)In the monomeric centrosymmetric title Ni-II complex, [Ni(C7H4BrO2)(2)(C10H14N2O)(2)(H2O)(2)], the Ni-II ion is located on an inversion center. The asymmetric unit contains one 2-bromobenzoate ligand, one diethylnicotinamide ...
