Güncel Gönderiler: Kimya Bölümü
Toplam kayıt 209, listelenen: 101-120
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A simple flow injection spectrophotometric procedure for direct determination of copper(II) in environmental samples
(Chemical Publishing Co., 2014)A new simple, rapid and sensitive flow-injection spectrophotometric detection method has been developed for the on-line determination of copper(II) in environmental water samples. The method is based on the measurement of ... -
Study of asymmetric aldol and Mannich reactions catalyzed by proline-thiourea host-guest complexes in nonpolar solvents
(2013)A proline-thiourea host-guest complex has been described as a good catalyst for asymmetric reactions such as aldol and Mannich reactions. High stereoselectivities were obtained under optimal conditions. Thiourea was observed ... -
Self-assembly of an organocatalyst for the enantioselective synthesis of Michael adducts and α-aminoxy alcohols in a nonpolar medium
(2013)A proline-thiourea host-guest complex is described as a self-assembled organocatalyst for the enantioselective Michael addition of aldehydes to nitroolefins and for the asymmetric ?-aminoxylation of both aldehydes and ... -
Voltammetric behavior and determination of antidepressant drug paroxetine at carbon-based electrodes
(Institute for Ionics, 2015)Simple, rapid, sensitive, and reproducible methods were developed for the assay of paroxetine in tablets. The electrooxidative behavior and determination of paroxetine on boron-doped diamond and edge plane graphite electrodes ... -
Chromate-selective electrodes prepared by using calix[4]arenes for the speciation of Cr(VI) and Cr(III)
(Institute for Ionics, 2017)The calix[4]arene and its mono-, di-, tri-, and tetra-acryloyl esters were used as suitable ionophores for Cr(VI) species to develop poly(vinyl chloride) (PVC) membrane electrodes. The influence of membrane contents and ... -
Simultaneous determination of amlodipine besylate and rosuvastatin calcium in binary mixtures by voltammetric and chromatographic techniques
(Institute for Ionics, 2016)Voltammetric and liquid chromatographic (LC) methods have been developed for the simultaneous determination of amlodipine besylate (AML) and rosuvastatin calcium (ROS) for the first time. Detailed electrochemical behavior ... -
Solvent effect on endosulfan adsorption onto polymeric arginine-methacrylate cryogels
(Springer Verlag, 2018)Endosulfan is a persistent insecticide that is still used in some countries even though it is life-threatening and banned in the agricultural struggle. The solubility of pesticides in water is negligible. It is known that ... -
Use of nicotinamide decorated polymeric cryogels as heavy metal sweeper
(Springer Verlag, 2018)Cryogels are synthetic polymers used in adsorption experiments in recent years. Because of their macropores, they provide an excellent advantage as an adsorbent in continuous and batch adsorption processes. In this study, ... -
Removal of DDE by exploiting the alcoho-phobic interactions
(Springer Verlag, 2017)DDE (1,1-bis-(4-chlorophenyl)-2,2-dichloroethene), which is a commonly used pesticides in agriculture, has harmful effects on human health. Therefore, the removal of this substance from the drinking water and the soil is ... -
Analytical and preparative scale separation of enantiomers of chiral drugs by chromatography and related methods
(Bentham Science Publishers B.V., 2018)While the amino acids, enzymes and hormones are chiral, chirality plays significant role in the life of plants, animals, as well as the human being. Chirality of molecules is important in various industries, such as ... -
Gadolinium borate and iron oxide bioconjugates: Nanocomposites of next generation with multifunctional applications
(Elsevier Ltd, 2018)The systematic investigations concerning the bioconjugation of GdBO3-Fe3O4 nanocomposite and their in vitro biocompatibility with cancer cell lines are reported. The nanocomposites were prepared hydrothermally from magnetite ... -
Fabrication and characterization of magnetite-gadolinium borate nanocomposites
(Elsevier Ltd, 2017)Soft ferromagnetic magnetite (Fe3O4)-gadolinium borate nanocomposites have been prepared via a facile hydrothermal approach by using Fe3O4, borax (BX) or boric acid (BA) and a simple Gd(III) salt. The products obtained by ... -
Carbon quantum dots co-catalyzed with multiwalled carbon nanotubes and silver nanoparticles modified nanosensor for the electrochemical assay of anti-HIV drug Rilpivirine
(Elsevier B.V., 2019)In this study, a novel and sensitive voltammetric nanosensor has been developed for the first time, for the detection of Rilpivirine based on amine-functionalized multiwalled carbon nanotubes (NH 2 -fMWCNT) with Ag ... -
The redox mechanism investigation of non-small cell lung cancer drug: Erlotinib via theoretical and experimental techniques and its host–guest detection by β-Cyclodextrin nanoparticles modified glassy carbon electrode
(Elsevier B.V., 2019)Erlotinib (ERL) is a tyrosine kinase inhibitor which prevents growing of cancer cells. The electrochemical oxidation mechanism of ERL was studied in details using cyclic voltammetry. Cyclic voltammetry, differential pulse ... -
Simple and sensitive adsorptive stripping voltammetric assay of granisetron from its dosage form by platinum nanoparticles modified electrodes
(Elsevier B.V., 2017)Base to the interfacial adsorptive nature of granisetron (GRN) on platinum particles modified glassy carbon electrode (PtPs/GCE). A sensitive analytical method for trace analysis of GRN based on the adsorptive stripping ... -
Functionalized carbon nanotubes - With silver nanoparticles to fabricate a sensor for the determination of zolmitriptan in its dosage forms and biological samples
(2013)A simple, sensitive and reproducible silver nanoparticle/multi walled carbon nanotubes modified glassy carbon electrode was developed as a sensor for the voltammetric determination of zolmitriptan with good accuracy and ... -
Synthesis, characterization, antioxidant, antimicrobial and DNA binding properties of ruthenium(II), cobalt(II) and nickel(II) complexes of Schiff base containing o-vanillin
(Springer Netherlands, 2019)In this study, the complex combinations of Ru(II), Co(II) and Ni(II) with Schiff base obtained through the condensation of (E)-methyl 2-amino-6-methyl-4,5,6,7-tetrahydrothieno[2,3-c]pyridine-3-carboxylate with 2-hydroxy- ... -
Performance of novel chemical grout in treating sands
(American Society of Civil Engineers (ASCE), 2017)A new chemical grouting formed by sodium silicate-boric acid mixtures was introduced. Initially, suitable sodium silicate and boric acid contents in the grout mixtures were studied. Gel time, initial viscosity, and syneresis ... -
Hydrogen storage properties of mono-and bidentate MOF structured orotate complexes
(Materials Research Society, 2014)One of the barriers for wide usage of hydrogen energy system is efficient storage. To store more hydrogen efficiently, physisorption is a choice among the others with high storage performance, reversibility, and lifecycles. ... -
Spectrophotometric determination of acidity constants of some novel methotrexate-like compounds in water and acetonitrile-water binary mixtures
(2010)The acidity constants of four novel methotrexate like compounds (NPALA; (N-[4-[[2-hydroxy -1-naphtyl)methylene]amino]benzoyl-?-alanin) TPALA; (N-[4-(2-thiophene-aldiminobenzoyl)-?-alanin), SAL-ALA; N-[4-[[2-hydroxyphenyl ...
