Güncel Gönderiler: Kimya-Makale Koleksiyonu
Toplam kayıt 678, listelenen: 361-380
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Surface properties of poly(vinylimidazole)-adsorbed expanded perlite
(Elsevier Science Bv, 2006)Adsorption, electrokinetic properties and the interactions between polymer and clay minerals have recently received much attention, owing to the physicochemical properties of these materials. In this study, surface properties ... -
Adsorption kinetics and mechanism of cationic methyl violet and methylene blue dyes onto sepiolite
(Elsevier Sci Ltd, 2007)The use of low-cost and ecofriendly adsorbents was investigated as an ideal alternative to the current expensive methods of removing dyes from wastewater. Sepiolite was used as an adsorbent for the removal of methyl violet ... -
Voltammetric determination of boron by using Alizarin Red S
(Elsevier Science Bv, 2006)A novel voltammetric method for boron determination in ppb level is described. Boron complexes with Alizarin Red S (ARS) and the complex, as well as the free ligand, both adsorbs on a hanging mercury drop electrode. The ... -
Characterization of 1,7-dibromo-N,N '-(bicyclohexyl)-3,4:9,10-perylendiimide langmuir-blodgett film for organic vapor sensing application
(Elsevier Science BV, 2015)1,7-Dibromo-N,N'-(bicyclohexyl)-3,4:9,10-perylendiimide material (FY3) was used as a sensor element in this work. Different number of LB thin film layer was deposited onto a gold-coated glass substrate to produce a thin ... -
Adsorption of cationic polyacrylamide onto sepiolite
(Elsevier Science Bv, 2006)The adsorption of PAM onto sepiolite from aqueous solutions has been investigated systematically as a function of some parameters such as calcination temperature of sepiolite, pH, ionic strength and temperature. The ... -
Removal of boron from aqueous solution by 2,3-dihydroxybenzaldehyde modified silica gel
(Springer International Publishing Ag, 2015)2,3-Dihydroxybenzaldehyde modified silica gel (SGDHB) was prepared and then used for the removal of boron. Adsorption of boron on the SGDHB was examined with respect to the equilibrium adsorption, kinetics and as a function ... -
Nitrogen composition during vegetative and generative growth stages of two Origanum taxa from Turkey
(Parlar Scientific Publications (P S P), 2007)Origanum onites and Origanum vulgare ssp. hirtum were collected from Balikesir, on the north west of Turkey. The nitrogen contents in organs such as root, stem, leaf and flower of Origanum onites and Origanum vulgare ssp. ... -
Purification of xanthine oxidase from bovine milk by affinity chromatography with a novel gel
(Taylor & Francis Ltd, 2015)A new affinity gel was synthesized for the purification of xanthine oxidase (XO, EC 1.2.3.22) from bovine milk. The gel was prepared on a Sepharose 4B matrix on which a spacer arm based on L-tyrosine was covalently attached ... -
Synthesis and evaluation of n-heteroarylsubstituted triazolosulfonamides as carbonic anhydrase inhibitors
(Taylor & Francis Ltd, 2015)A new series of N-heteroarylsubstituted triazolosulfonamide compounds were synthesized and their inhibitory effects on the activity of purified human carbonic anhydrase (hCA) I and II were evaluated. Compounds (3 a-k) were ... -
Undergraduate pre-service teachers' understandings and misconceptions of phase equilibrium
(Amer Chemical Soc, 2006)Some 59 pre-service chemistry teachers enrolled in physical chemistry course offered by the faculty of education at a public university in Turkey were sampled to determine possible misunderstandings about phase equilibrium ... -
Experimental, theoretical and biological activity study on the acyl-substituted benzo-18-crown-6, dibenzo-18-crown-6 and dibenzo-24-crown-8
(Springer, 2006)Hexadecanoyl, dihexadecanoyl, dioctadecaneoyl, di-10-undecenoyl, and dicis-9-octadecenoyl derivatives of benzo[18]crown-6, dibenzo[18]crown-6 and dibenzo[24]-8 were synthesized by the condensation of carboxylic acids ... -
The synthesis of sodium sulfide pentahydrate, Na2S.5H(2)O, through a solid-gas reaction of sulfidizing gas mixture with sodium carbonate, Na2CO3
(Taylor & Francis Ltd, 2006)In this study, the sulfidization of Na2CO3 was investigated by using a solid-gas reaction under a sulfidizing gas mixture, which consisted of COS, CS2, and S-2 gases. Sodium sulfide pentahydrate, Na2S center dot 5H(2)O, ... -
Synthesis, characterization, crystal structure and thermal analysis of a copper(II) mononuclear compound with 2,6-bis(3,5-dimethyl-N-pyrazolyl) pyridine (bdmpp) and selenocyanate as ligands
(Taylor & Francis Ltd, 2007)A single crystal of the copper(II) compound, [Cu(bdmpp)(SeCN)(2)], 2, was obtained and its crystal structure was determined by X-ray diffraction methods. The complex was characterized by elemental, thermal and FTIR analysis. ... -
Purification of carbonic anhydrase from dog erythrocytes and investigation of in vitro inhibition by various compounds
(Taylor & Francis Ltd, 2007)The enzyme carbonic anhydrase ( E. C. 4.2.1.1) has a stimulatory effect on glaucoma, an eye disease that has a risk to dogs, which are models for the human eye disease, that is similar to that in humans. In this study, ... -
Novel purification strategy for human PON1 and inhibition of the activity by cephalosporin and aminoglikozide derived antibiotics
(Elsevier France-Editions Scientifiques Medicales Elsevier, 2006)Human serum paraoxonase (PON1, EC 3.1.8.1.) is a high-density lipid (HDL)-associated, calcium-dependent enzyme; its physiological substrates are not known. In this study, a new purification strategy for human PON1 enzyme ... -
Background defining during the imine formation reaction in FT-IR liquid cell
(Pergamon-Elsevier Science Ltd, 2006)Imine formation is a very important chemical reaction because of its relevance to biological process. Therefore. it is crucial to follow whole reactionprocess in detail. The current work performed to monitor the whole ... -
Adsorption of polyvinylimidazole onto kaolinite
(Academic Press Inc Elsevier Science, 2006)The adsorption of polyvinylimidazole (PVI) onto kaolinite from aqueous solutions has been investigated systematically as a function of parameters such as calcination temperature of kaolinite, pH, ionic strength, and ... -
Analysis of essential oil composition of Thymbra spicata var. spicata: Antifungal, antibacterial and antimycobacterial activities
(Walter De Gruyter Gmbh, 2006)The fresh leaves and brine of leaves of Thymbra spicata var. spicata (KARAKIZ (TM)) were analyzed by hydrodistillation, headspace and GC/MS techniques. The main components were determined as carvacrol, p-cymene, beta-myrcene, ... -
2-Acetyl-3-methyl-4H-1,4-benzothiazine: a redetermination at 100 K
(Wiley-Blackwell,, 2006)The structure of the title compound, C11H11NOS, has been reported previously at room temperature by Ferguson & Ruhl [Cryst. Struct. Commun. (1982), 11, 1033-1038]. We report here a redetermination, at 100 (2) K, with ... -
Fatty acid composition of seeds of some species of Nepeta L.
(Taylor & Francis Ltd, 2007)The fatty acid compositions of Nepeta viscida, N. cilicica, N. crinita, N. nuda ssp. glandulifera and N. aristata were analyzed by GC/MS. The main free fatty acids were found as linolenic acid (49.8 - 58.5%), linoleic acid ...
