Güncel Gönderiler: Kimya Bölümü Koleksiyonu
Toplam kayıt 352, listelenen: 121-140
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Experimental design applications in chemistry: A case study on Central composite design for optimization of extraction of olive seeds in a Soxhlet
(Taylor and Francis Ltd., 2019)Chemometrics is described in general as to extract the more useful information from the chemical data obtained experimentally by various methods applying some mathematical techniques to these data. Today, studies in many ... -
Analysis waste water characteristics via data mining: A Muğla province case and external validation
(Taylor and Francis Ltd., 2019)This study is related to the analysis of characteristic parameters of domestic wastewater samples which are collected from municipal wastewater treatment plants located in the provinces of Muğla in Turkey. Used parameters ... -
Trace element analysis by icp-ms and chemometric approach in some euphorbia species: Potential to become a biomonitor
(Iranian Journal of Pharmaceutical Research, 2019)In this study, the branch, leaves, flowers, roots and mixed parts of different nine Euphorbia species were analyzed for their trace element contents by using ICP-MS. The samples were digested by concentrated nitric acid ... -
Investigation of Antioxidant and Anticholinesterase Potential of Essential Oil and Methanolic Extract of Propolis from Mila Region
(Taylor and Francis Ltd., 2019)The essential oil (EO) obtained by hydrodistillation of the propolis of Grarem located in Mila region (East of Algeria) have been studied by GC/MS. Seventy eight compounds were identified representing 93.52 % of the essential ... -
HPLC-DAD phenolic profiles, antibiofilm, anti-quorum sensing and enzyme inhibitory potentials of Camellia sinensis (L.) O. Kuntze and Curcuma longa L.
(Academic Press, 2020)This study aimed at investigating phenolic composition, anti-quorum sensing and enzyme inhibitory potential of Camellia sinensis and Curcuma longa. HPLC-DAD identified and quantified curcumin (398.67 ± 0.34 mg/g), ... -
Antibiofilm and anti-quorum sensing activities of polyethylene imine coated magnetite and nickel ferrite nanoparticles
(Springer Science and Business Media Deutschland GmbH, 2020)This study was aimed at synthesizing polyethyleneimine-coated magnetic nanoparticles and evaluating their effect on pathogenic bacteria. Polyethyleneimine-coated magnetite (PEIMnF) and nickel ferrite (PEINF) nanoparticles ... -
Inhibitory activities of medicinal mushrooms on ?-amylase and ?-glucosidase-enzymes related to type 2 diabetes
(Elsevier B.V., 2021)Mushrooms have been used as a primary source of medicines since ancient times due to the presence of bioactive compounds. Enzyme inhibition is an important field of pharmaceutical research that provides insight into the ... -
Solvent extraction of Fe3+ cation by 25,26,27,28-tetraisonitrosoaceto calix[4]arene and based ligands
(Marcel Dekker Inc, 1999)25,26,27,28-Tetraisonitrosoaceto calix[4]arene [L-8] was synthesized by reacting 25,26,27,28-tetraacetyl calix[4]arene [L-7] with n-butyl nitrite. The synthesized compounds [L-7, L-8] and based ligands (p-tert-butyl phenol ... -
The identification and quantitative analysis of the very toxic 2,3,7,8-tetrachlordibenzo-P-dioxin in the presence of polychlorinated dibenzodioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) contaminated soil samples
(Marcel Dekker Inc, 1999)This research decribes the nature and extent of 2,3,7,8-tetrachlorodibenzo-p-dioxin (2,3,7,8-TCDD) contamination in the soil samples from a waste cable incineration plant. The samples are collected at different places in ... -
Antimicrobial effects of bis(Delta(2)-2-imidazolinyl)-5,5 '-dioxime and its mono- and tri-nuclear complexes
(Kluwer Academic Publ, 2000)Bis(Delta(2)-2-imidazolinyl)-5,5'-dioxime (H2L) and its nickel, cobalt, zinc, cadmium and mercury complexes have been prepared and tested in vitro against different microorganisms in order to assess their antimicrobial ... -
Synthesis of a novel heterocyclic dioxime and its mononuclear complexes with Ni(II), Co(II), Cu(II), Zn(II), Cd(II) and Hg(II)
(Marcel Dekker Inc, 1999)In this work, a novel heterocyclic dioxime (2,3-hydroximino-4-phenyl-6-phenlyazo-1-thia-4,5-diazacyclohexa-5-diene, H2L) was synthesized by reacting dithizone with cyanogen di-N-oxide. H2L forms mononuclear complexes ... -
Synthesis and characterization. of complexes of Ni(II), Co(II), and Cu(II) with four 4-aminobenzoate derivatives of unsymmetrical vic-dioximes
(Taylor & Francis Inc, 2002)Four different 4-aminobenzoate derivates of vic-dioximes Were synthesized. Their transition metal complexes with Ni(II), Co(II) and Cu(II) were prepared with a metal-ligand ratio of 1:2. The unsymmetrical complexes are in ... -
Chemical composition and antifungal properties of essential oils of three Pistacia species
(Elsevier Science Bv, 2003)The chemical composition of essential oils obtained from the leaves of Pistacia vera, Pistacia terebinthus, Pistacia lentiscus and the resin of Pistacia lentiscus were analyzed by GC and GG-MS. alpha-Pinene, beta-pinene, ... -
Antifungal activities of the leaves of three Pistacia species grown in Turkey
(Elsevier Science Bv, 2003)The crude extracts obtained from the leaves of Pistacia vera, Pistacia terebinthus and Pistacia lentiscus were tested for antifungal activities against three pathogenic agricultural fungi, Phythium ultimum, Rhizoctania ... -
Isolation and characterization of antioxidant phenolic compounds from the aerial parts of Hypericum hyssopifolium L. by activity-guided fractionation
(Elsevier Sci Ireland Ltd, 2003)Dried methanol extract of Hypericum hyssopifolium subsp. elongatum var. elongatum was dissolved in distilled water, and then fractioned by re-extracting with petroleum ether, chloroform, and ethyl acetate, subsequently. ... -
Identification and characterization of a glycosaminoglycan recognition element of the C chemokine lymphotactin
(Amer Soc Biochemistry Molecular Biology Inc, 2004)Chemokine-mediated recruitment of leukocytes in vivo depends on interactions with cell surface glycosaminoglycans. Lymphotactin, the unique member of the "C" chemokine subclass, is a highly basic protein that binds heparin, ... -
Selective extraction of iron(III) from aqueous nitrate solution in the presence of cobalt(II), copper(II) and nickel(II) ions using BiS(Delta(2)-2-imidazolinyl)-5,5 '-dioxime
(Japan Soc Analytical Chemistry, 2004)The feasibility of using bis(Delta(2)-2-imidazolinyl)-5,5'-dioxime (H2L) for the selective extraction of iron(III) from aqueous solutions was investigated by employing an solvent-extraction technique. The extraction of ... -
The constituents of essential oil and in vitro antimicrobial activity of Micromeria cilicica from Turkey
(Elsevier Ireland Ltd, 2004)The chemical composition of the essential oil of Micromeria cilicica (Labiatae) that has been used in folk medicine were analysed by GC, GC-MS, H-1 NMR and C-13 NMR. The totals of 34 components in hydrodistillation, 30 ... -
Removal of phenolic and lignin compounds from bleached kraft mill effluent by fly ash and sepiolite
(Springer, 2005)This study aimed to remove phenolic and lignin compounds from paper mill industry (4500 m(3)/h) wastewaters, which is discharged to sea from a plant located in the western Turkey. As adsorbent, fly ash, raw sepiolite and ... -
Removal of aniline from aqueous solution by PVC-CDAE ligand-exchanger
(Elsevier Science Bv, 2005)The adsorption of aniline from aqueous solutions onto cobalt(II)-poly(vinyl chloride)-carboxylated diaminoethane (PVC-CDAE) resin has been studied using a mini-column apparatus at 25 +/- 0.1 degrees C. First of all, ...
