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Toplam kayıt 4562, listelenen: 3671-3680
Factorial Design Optimization of Solid-Phase Microextraction for High-Performance Liquid Chromatography-Ultraviolet Spectrometry Analysis of Polycyclic Aromatic Hydrocarbons in Cigarette Filter Tar
(Taylor & Francis Ltd, 2014)
A simple and rapid procedure for the determination of polycyclic aromatic hydrocarbons (PAHs) in cigarette filter tar using solid-phase microextraction (SPME) was developed. The analysis was carried out using high-performance ...
Microwave based synthesis and spectral characterization of thermo-sensitive poly(N,N-diethylacrylamide) grafted pectin copolymer
(Elsevier Science Bv, 2018)
The functionalization of polysaccharides with synthetic polymers has attracted great attention owing to its application in many industrial fields. The aim of this work was to study the impact of pectin functionalization ...
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 ...
Adsorption behavior of copper(II) ion from aqueous solution on methacrylic acid-crafted poly(ethylene terephthalate) fibers
(John Wiley & Sons Inc, 2000)
The adsorption behavior of methacrylic acid-grafted poly(ethylene terephthalate) fibers was studied toward the copper(II) ion in aqueous solutions by a batch equilibriation technique. The influence of treatment time, ...
Sorption behaviour of copper(II), zinc(II) and nickel(II) on formaldehyde cross-linked Saccharomyces cerevisiae immobilized on pumice stone
(Inst Lebensmitteltechnologie Analytische Chemie, 2001)
The adsorption of Cu, Zn and Ni on to formaldehyde cross-linked Saccharomyces cerevisiae immobilized on pumice stone was investigated. Maximum adsorption was occurred at pH 6 for all elements studied. The effect of mixing ...
Non-Acidic Mediated Friedel-Craft Reaction of Thiophene Using EtAlCl2
(Asian Journal Of Chemistry, 2013)
Since alkyl Lewis acids are Bronsted bases, they give a non-acidic reaction media. In this context, acylation of thiophene is investigated in the presence of EtAlCl2 and non-acidic media. Besides 8 examples of thiophene, ...
Dipotassium maleate with boric acid
(Blackwell Publishing, 2007)
In the title compound, poly[(mu(3)-boric acid)-mu(4)-maleato-dipotassium], [K-2(C4H2O4){B(OH)(3)}](n), there are two independent K+ cations, one bonded to seven O atoms ( three from boric acid and four from maleate), and ...
Embeddings Between Weighted Cesaro Function Spaces
(ELEMENT, 2020)
In this paper, we give the characterization of the embeddings between weighted Ces`aro function spaces. The proof is based on the duality technique, which reduces this problem to the characterizations of some direct and ...
Bezier variant of the Bernstein-Durrmeyer type operators
(Springer Basel Ag, 2017)
In the present paper, we introduce the Bezier-variant of Durrmeyer modification of the Bernstein operators based on a function , which is infinite times continuously differentiable and strictly increasing function on [0, ...
Ruled surfaces with bi-null curves in R-2(5)
(Springer-Verlag Italia Srl, 2017)
In the present paper, we discuss the geometric properties of two classes of ruled surfaces whose directrix curve is a bi-null curve in semi-Euclidean space R-2(5). We get some classes of flat marginally trapped surfaces in R-2(5).