Başlık için Kimya Bölümü listeleme
Toplam kayıt 208, listelenen: 45-64
-
Designing of a stable and selective glucose biosensor by glucose oxidase immobilization on glassy carbon electrode sensitive to H2O2 via nanofiber interface
(SPRINGER, 2020)The integration of the enzymes on the solid electrode surfaces is an indispensable step for the construction of the bioelectrochemical electrode. In the current work, the blend nanofibers consisting of poly (vinyl alcohol) ... -
Determination of Cu, Zn and Cd in water by FAAS after preconcentration by baker's yeast (Saccharomyces cerevisiae) immobilized on sepiolite
(Springer Verlag, 1999)By using the adsorbent Saccharomyces cerevisine immobilized on sepiolite an adsorption-elution method was developed for the preconcentration of Cu, Zn, and Cd followed by flame atomic absorption spectrometry (FAAS). ... -
Determination of Cu, Zn, Fe, Ni and Cd by flame atomic absorption spectrophotometry after preconcentration by Escherichia coli immobilized on sepiolite
(Elsevier Science Bv, 2000)A method for the determination of Cu, Zn, Fe, Ni and Cd by flame atomic absorption spectrophotometry (FAAS) after preconcentrating on a column containing Escherichia coli immobilized on sepiolite has been developed. Optimum ... -
Determination of Fe(II) and Fe(III) in water by flame atomic absorption spectrophotometry after their separation with Aspergillus niger immobilized on sepiolite
(Japan Soc Analytical Chemistry, 2001)… -
Determination of iron and lead by flame atomic absorption spectrometry after preconcentration with sepiolite
(Springer Verlag, 1997)By using a new adsorbent (sepiolite) an adsorption-elution and atomic absorption spectrometric method has been developed for the preconcentration and determination of Fe and Pb. Recoveries of the analytes were 82 +/- 3% ... -
Determination of iron and nickel by flame atomic absorption spectrophotometry after preconcentration on Saccharomyces cerevisiae immobilized sepiolite
(Elsevier Science Bv, 1998)Iron and nickel have been preconcentrated on Saccharomyces cerevisiae immobilized sepiolite and determined by flame atomic absorption spectrophotometry (FAAS). Preconcentration studies were conducted by the column method. ... -
Determination of trace metals in geological samples by atomic absorption spectrophotometry after preconcentration by Aspergillus niger immobilized on sepiolite
(Japan Soc Analytical Chem, 1999)A method for the determination of Cu, Zn, Fe, Ni and Cd in geological samples by flame atomic absorption spectrophotometry (FAAS) after preconcentrating by Aspergillus niger immobilized on sepiolite has been developed. The ... -
Determination of zinc, cadium, cobalt and nickel by flame atomic absorption spectrometry after preconcentration by poly(ethylene terephthalate) fibers grafted with methacrylic acid
(Pergamon-Elsevier Science Ltd, 2000)A method for the determination of Zn, Cd, Co and Ni by flame atomic absorption spectrophotometry after preconcentrating on poly(ethylene terephthalate) fibers grafted with methacrylic acid has been developed. The batch ... -
Development and characterization of dual sensitive poly(N,N-diethyl acrylamide) grafted alginate microparticles
(Elsevier Science Bv, 2019)Temperature and pH dual sensitive materials have attracted much interest in the fields of tissue engineering and drug delivery. In this study, a novel temperature and pH dual sensitive poly(N,N-diethyl acrylamide) grafted ... -
Development and characterization of polymeric-based nanoparticles for sustained release of amoxicillin - an antimicrobial drug
(Taylor & Francis Ltd, 2018)In this study, amoxicillin (AMO)-loaded poly(vinyl alcohol)/sodium alginate (PVA/NaAlg) nanoparticles were prepared as a polymer-based controlled release system. The physicochemical properties of the obtained nanoparticles ... -
Development of thermo-responsive poly(vinyl alcohol)-g-poly(N-isopropylacrylamide) copolymeric membranes for separation of isopropyl alcohol/water mixtures via pervaporation
(Elsevier Science Inc, 2016)This study aims to develop thermo-responsive poly(N-isopropylacrylamide) (PNIPAAm) grafted poly(vinyl alcohol) (PVA-g-PNIPAAm) copolymer membranes for separation of isopropyl alcohol (IPA)/water mixtures via pervaporation. ... -
Development of thermo/pH-responsive chitosan coated pectin-graft-poly(N, N-diethyl acrylamide) microcarriers
(Elsevier Sci Ltd, 2019)Pectin based micro/nanocarriers display promising properties for biomedical applications. In this study, thermo/pH-responsive chitosan coated pectin-graft-poly(N,N-diethyl acrylamide) (Pec-g-PDEAAm/CS) microcarriers ... -
Diffusion and selective transport of alkali cations in a polysulfone ion exchange membrane
(Gauthier-Villars, 1995)he diffusion of alkali metals through a charged polysulfonated ICE-450 ion exchange membrane has been measured as a function of pH and conservation of the external solution at 25 degrees C. The permeability and diffusion ... -
Dimethyl trans-3-(4-bromophenyl)-2-methylisoxazolidine-4,5-dicarboxylate
(Wiley-Blackwell, 2009)In the title compound, C14H16BrNO5, the isoxazolidine ring adopts an envelope conformation, with the N atom at the flap. In the crystal, intermolecular C-H center dot center dot center dot N and C-H center dot center dot ... -
Dimethylammonium bis(3-oxido-naphthalene-2-carboxylato)borate hemihydrate
(Wiley-Blackwell, 2008)The title compound, C2H8N+center dot C(22)H(12)BO6(-)center dot 0.5H(2)O, was synthesized under atmospheric conditions in the presence of dimethylformamide acting as a template. The structure is composed of [NH2(CH3)2](+) ... -
DNA adsorption on a poly-L-lysine-immobilized poly(2-hydroxyethyl methacrylate) membrane
(Wiley, 2003)The DNA adsorption properties of poly-L-lysine-immobilized poly(2-hydroxyethyl methacrylate) (pHEMA) membrane were investigated. The pHEMA membrane was prepared by UV-initiated photopolymerization and activated with ... -
Dye-ligand and metal chelate poly(2-hydroxyethylmethacrylate) membranes for affinity separation of proteins
(Elsevier Science Bv, 1998)Cibacron Blue F3GA was covalently immobilized onto poly(2-hydroxyethyl methacrylate) (pHEMA) membranes via the nucleophilic reaction between the chloride of its triazine ring and the hydroxyl group of pHEMA. Then, Fe3+ ... -
Dye-ligand immobilized IPNs membrane for removal heavy metal ions
(Wiley-V C H Verlag Gmbh, 2003)We have developed a novel approach to obtain high metal sorption capacity utilizing a membrane containing chitosan and an immobilized reactive dye (i.e. Reactive Yellow-2). The composite membrane was characterized by SEM, ... -
Eco-Friendly Synthesis and Characterization of Reduced Graphene Oxide
(Iop Publishing Ltd, 2017)Graphene is a single sheet of sp(2) bonded carbon having a two-dimensional (2D) layer. It has remarkable electronic, mechanical and thermal properties. In this paper, the graphene oxide (GO) was reduced by reducing chemicals ... -
The effect of Al3+ concentration on the properties of alumina powders obtained by reaction between aluminium sulphate and urea in boiling aqueous solution
(Elsevier Sci Ltd, 2002)Homogeneous precipitation of alumina precursors was carried out in boiling aqueous solutions that contained excess urea and 0.010 0.200 M Al3+. The obtained precursor precipitates were dried for 2 h at 100 C to yield ...
