Güncel Gönderiler: Kimya Bölümü Koleksiyonu
Toplam kayıt 352, listelenen: 181-200
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GC-MS Analysis and Antimicrobial Activity of Essential Oil of Stachys cretica subsp smyrnaea
(Natural Products Inc, 2009)The essential oil from the aerial parts of Stachys cretica L. subsp. smyrnaea Rech. fil. (Lamiaceae), endemic to Turkey, was investigated by using GC and GC-MS. Thirty-four of 37 components, represented 99.7% of the total ... -
A Study of Trace Element Contents in Plants Growing at Honaz Dagi-Denizli, Turkey
(Foundation Environmental Protection & Research-Fepr, 2009)Denizli is one of the rapidly developing states in the West Anatolian Region of Turkey Keeping this in view, 30 different plants were selected to study their potential as biomonitors of trace elements like Pb, Cd, Ni, Zn, ... -
Adsorption of a textile dye onto activated sepiolite
(Elsevier, 2009)Adsorption of Remazol red B (RRB) on thermal activated sepiolite (TAS) and acid activated sepiolite (AAS) from aqueous solutions was investigated at different parameters, such as, adsorbent type, temperature, contact time ... -
Antioxidant and Anticholinesterase Activity Evaluation of ent-Kaurane Diterpenoids from Sideritis arguta
(Amer Chemical Soc, 2009)The petroleum ether and acetone extracts of the aerial parts of Sideritis arguta afforded two new and six known diterpenoids with the ent-kaurane skeleton. The structures of the new diterpenoids were determined as ent-7 ... -
Effects of atmospheric plasma on the printability of wool fabrics
(Ege Universitesi, 2009)This study is about environmentally safe pre-treatment for wool fabrics to improve their printability with acid dyes. Knitted wool fabrics treated with argon and air atmospheric plasma Were evaluated ill terms of printability. ... -
Effects of Atmospheric Pressure Plasma Treatments on Certain Properties of Cotton Fabrics
(Inst Chemical Fibres, 2009)In this study, air and argon atmospheric plasma were used for modifying some properties of bleached plain cotton fabrics. Certain physical properties such as pilling, thermal resistance, thermal conductivity, water vapour ... -
Plasma treatment of polypropylene fabric for improved dyeability with soluble textile dyestuff
(Elsevier, 2009)The impact of plasma treatment parameters on the surface morphology, physical-chemical, and dyeing properties of polypropylene (PP) using anionic and cationic dyestuffs were investigated in this study. Argon plasma treatment ... -
Removal of cationic dyes by kaolinite
(Elsevier Science Bv, 2009)The removal of cationic dyes such as maxilon yellow 4GL (MY 4GL) and maxilon red GIRL (MR GRL) on kaolinite from aqueous solutions has been studied according to the adsorption method. The adsorbed amount of dyes on kaolinite ... -
Adsorption kinetics of maxilon yellow 4GL and maxilon red GRL dyes on kaolinite
(Elsevier Science Bv, 2009)Kaolinite, a low-costly material, is the most abundant phyllosilicate mineral in highly weathered soils. in this work, the adsorption kinetics of maxilon yellow 4GL (MY 4GL) and maxilon red GRL (MR GRL) dyes on kaolinite ... -
Antioxidant Diterpenoids from the Roots of Salvia barrelieri
(John Wiley & Sons Ltd, 2009)Introduction - The phytochemical and biological studies carried out on Salvia species showed that their extracts and constituents have various biological activities. Objective - The aim of this study was the isolation of ... -
The Effect of Temperature on the Essential Oil Components of Salvia potentillifolia Obtained by Various Methods
(Sage Publications Inc, 2009)The chemical compositions of the essential oils of Salvia potentillifolia (Lamiaceae) were analyzed by GC and GC-MS. The oils were obtained by four different methods (hydrodistillation, steam distillation, and two extraction ... -
GC-MS Analysis of the Antioxidant Active Fractions of Micromeria juliana with Anticholinesterase Activity
(Natural Products Inc, 2009)The aerial parts of Micromeria juliana (L.) Bentham ex Reichb. were extracted with light petroleum, acetone and methanol, successively. The antioxidant activity of different concentrations of the extracts was evaluated ... -
In vitro Study of Antibacterial Activity on Multi-Resistant Bacteria and Chemical Composition of the Chloroform Extract of Endemic Centaurea drabifolia subsp cappadocica
(Sage Publications Inc, 2009)The antimicrobial activity of the n-hexane, chloroform, ethyl acetate and ethanol extracts of the aerial parts of C. drabifolia S.M. subsp. cappadocica (DC.) Wagenitz (Asteraceae) was evaluated against microorganisms ... -
Double-walled carbon nanotube based carbon paste electrode as xanthine biosensor
(Springer Wien, 2009)We describe the first usage of a double walled carbon nanotube (DWCNT) modified carbon paste electrode as biosensor transducer. Xanthine was chosen as a substrate for evaluation of the electrode performance. Proper amount ... -
Antioxidant activities, metal contents, total phenolics and flavonoids of seven Morchella species
(Pergamon-Elsevier Science Ltd, 2009)Seven Morchella species were analyzed for their antioxidant activities in different test systems namely beta-carotene/linoleic acid, DPPH, reducing power, chelating effect and scavenging effect (%) on the stable ABTS(center ... -
Studies on the antioxidant activity of essential oil and different solvent extracts of Vitex agnus castus L. fruits from Turkey
(Pergamon-Elsevier Science Ltd, 2009)This study is designed to examine the chemical composition and antioxidant activity of the essential oil and different solvent extracts of Vitex agnus castus. GC and GC-MS analysis was resulted in the detection of 27 ... -
Adsorption of Cu(II) onto silica gel-immobilized Schiff base derivative
(Elsevier, 2009)4-chloroisonitroacetophenone 4-aminobenzylhydrazone (CAAH) chemically anchored on a silica gel surface, has been used for Cu(II) sorption from aqueous solution. The surface modification processes was performed after ... -
Removal of Reactive Blue 221 by Kaolinite from Aqueous Solutions
(Amer Chemical Soc, 2010)The adsorption behavior of reactive blue 221 (RB221) on kaolinite was investigated by batch tests. The experiments were performed by employing a spectrophotometer to measure the concentration of RB221 before and after ... -
Evaluation of metal concentration and antioxidant activity of three edible mushrooms from Mugla, Turkey
(Pergamon-Elsevier Science Ltd, 2010)This study is designed for the determination of metal concentrations, antioxidant activity potentials and total phenolics of Amanita caesarea, Clitocybe geotropa and Leucoagaricus pudicus. Concentrations of four heavy ... -
Biosorption of Cr(III) from solutions using vineyard pruning waste
(Elsevier Science Sa, 2010)The kinetics and biosorption mechanism of Cr(III) ions on vineyard pruning waste (VPW) have been studied using different parameters such as initial concentration, biosorbent dosage, temperature, contact time and solution ...
