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Toplam kayıt 1058, listelenen: 685-704
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Preconcentration of copper on ion-selective imprinted polymer microbeads
(Elsevier Science BV, 2003)Molecular recognition-based separation techniques have received much attention in various fields because of their high selectivity for target molecules. Molecular imprinting has been recognized as a promising technique for ... -
Preconcentration of copper using double-imprinted polymer via solid phase extraction
(Elsevier Science BV, 2006)The aim of this study is to prepare double-imprinted polymers which can be used for the selective removal of Cu(II) ions from synthetic waters. Chitosan-succinate (CS) was choosen as the metal complexing polymer. In the ... -
Preconcentration of phosphate ion onto ion-imprinted polymer
(Elsevier Science BV, 2008)In this study, selective separation and preconcentration of phosphate ions on the phosphate-imprinted chitosan-succinate beads have investigated. Chitosan-succinate, phosphate, epichlorohydrin were used as the complexing ... -
Prediction of the acidities of organic bases in aqueous solution using AM1 COSMO solvation model
(Elsevier Science BV, 2000)Potentially tautomeric pyrazole-3-ones were studied, in order to predict their tautomeric equilibrium constants and pK(a) values, using the semiempirical AM1 COSMO solvation model at the SCF level in aqueous solution. Syn ... -
Prediction of the kinetics, equilibrium and thermodynamic parameters of adsorption of copper(II) ions onto 8-hydroxy quinoline immobilized bentonite
(Elsevier Science BV, 2008)In this study, the chelating agent of 8-hydroxy quinoline (HQ) was firstly used for the immobilization of bentonite and then it was used for the adsorption of copper(II) ions from aqueous solutions. The parameters of pH, ... -
Preparation and characterization of activated carbon from waste biomass
(Elsevier Science BV, 2009)Lignocellulosic materials are good and cheap precursors for the production of activated carbon. In this study, activated carbons were prepared from the pyrolysis of soybean oil cake at 600 and 800 C by chemical activation ... -
Preparation and characterization of activated carbon produced from pomegranate seeds by ZnCl2 activation
(Elsevier Science BV, 2009)In this study, pomegranate seeds, a by-product of fruit juice industry, were used as precursor for the preparation of activated carbon by chemical activation with ZnCl2. The influence of process variables such as the ... -
Preparation and Characterization of Activated Carbons from Waste Melamine Coated Chipboard by NaOH Activation
(Foundation Environmental Protection & Research-Fepr, 2012)Activated carbons were prepared from the pyrolysis of waste melamine coated chipboard at 600 and 800 degrees C by chemical activation with NaOH. The effects of the carbonization temperature and concentration of chemical ... -
Preparation and characterization of electrodeposited ZnO and ZnO:Co nanorod films for heterojunction diode applications
(Elsevier Science Sa, 2013)Well-aligned undoped and Co-doped nanorod ZnO films were grown by electrochemical deposition onto p-Si substrates from an aqueous route. Aqueous solution of Zn(NO3)(2)center dot 6H(2)O and hexamethylenetetramine (HMT) were ... -
Preparation and characterization of the newly synthesized metal-complexing-ligand N-methacryloylhistidine having PHEMA beads for heavy metal removal from aqueous solutions
(Wiley-V C H Verlag GMBH, 2002)The aim of this study was to investigate in detail the performance for removal of heavy metal ions of beads composed of poly(2-hydroxyethyl methacrylate) (pHEMA) to which N-methacryloyhistidine (MAH) was copolymerized. The ... -
Preparation and characterization of ZnO thin films deposited by sol-gel spin coating method
(Natl Inst Optoelectronics, 2008)ZnO thin films have been deposited onto the glass substrates by the sol-gel spin coating method at different chuck rotation rates. This method was used for the preparation of thin films of the important semiconductors H-VI. ... -
Preparation of a disposable and low-cost electrochemical sensor for propham detection based on over-oxidized poly(thiophene) modified pencil graphite electrode
(Elsevier Science BV, 2018)In this study, an electrochemical sensor was developed for the determination of propham (PRO) in potato, human urine and river water samples based on the over-oxidized poly(thiophene) modified pencil graphite [PG/p(Thp)-Ox] ... -
Preparation of a double-step modified carbon paste electrode for the voltammetric determination of propham via bulk modification with fumed silica and drop-casting of maghemite-modified fumed silica nanocomposite
(Elsevier Science Sa, 2018)In this study, a double-step modified carbon paste electrode (CPE) was prepared for the voltammetric determination of propham (PRO). In the first step, modification of CPE was performed by incorporating 12.5% fumed silica ... -
Preparation of a novel hydrophobic affinity cryogel for adsorption of lipase and its utilization as a chromatographic adsorbent for fast protein liquid chromatography
(Wiley-Blackwell, 2014)In this study, we have prepared a hydrophobic cryogel for the chromatographic separation of lipase from its aqueous solutions including single protein and protein mixture and also Yarrowia lipolytica cell extract. ... -
Preparation of Activated Disposable Pencil Graphite Electrode for the Selective and Sensitive Determination of a Fluoroquinolone Antibiotic: Levofloxacin
(Bentham Science Publ LTD, 2018)Background: Levofloxacin (LVX) is one of the fluoroquinolone antibiotics that possess a wide spectrum of bactericidal activity against both Gram-positive and Gram-negative bacteria. Because of its side effects and its ... -
Preparation of cationic latexes with different length alkyl groups on their quaternary as supports for IBA catalyst ammonium ions and their use in the hydrolysis of PNPDPP
(Elsevier Science BV, 2008)In this study, four cationic latexes containing n-hexadecyl, n-octyl, or a methyl group as one of the alkyls on their quaternary ammonium ions were synthesized and used as supports for o-iodosobenzoate (IBA) catalyst in ... -
Preparation of cibacron blue F3GA-attached polyamide hollow fibers for heavy metal removal
(John Wiley & Sons Inc, 2002)Dye-affinity adsorption has been used increasingly for heavy metal removal. Synthetic hollow fibers have advantages as support matrices in comparison to conventional bead supports because they are not compressible and they ... -
Preparation of Fe2O3 modified kaolin and application in heterogeneous electro-catalytic oxidation of enoxaciri
(Elsevier Science BV, 2017)Preparation and use of an iron containing catalyst, Fe2O3 modified kaolin (Fe2O3-KLN), was investigated to develop a heterogeneous electro-Fenton process for the electrochemical oxidation of enoxacin (ENXN). The characterizations ... -
Preparation of magnetic dye affinity adsorbent and its use in the removal of aluminium ions
(Vsp BV, 2001)Aluminium has recently been considered as a causative agent in dialysis encephalopathy, osteodystrophy, and anemia occuring in hemodialysis patients. The aim of this study is to prepare magnetic poly (2-hydroxyethylmethacrylate) ... -
Preparation of MIP-based QCM nanosensor for detection of caffeic acid
(Elsevier Science BV, 2014)In the present work, a new caffeic acid imprinted quartz crystal microbalance (QCM) nanosensor has been designed for selective assignation of caffeic acid in plant materials. Methacrylamidoantipyrine-iron (III) [MAAP-Fe(III)] ...
