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Separation of Inorganic Anions on a Pyridine Stationary Phase in Ion Chromatography
Separation of Inorganic Anions Pyridine Ion Chromatography
2010/9/20
The retention behavior of inorganic anions on a pyridine stationary phase commercially available for hydrophilic interaction chromatography was examined in ion chromatography. Inorganic anions were re...
Flame Atomic Absorption Spectrometric Determination of Palladium in Aqueous Samples after Preconcentration Using Nanoparticles of γ-Alumina Functionalized with Pyridine Groups
Flame Atomic Absorption Spectrometric Palladium Aqueous Samples Preconcentration Nanoparticles of γ-Alumina Functionalized Pyridine Groups
2010/9/20
A new solid phase, nanoparticles of alumina functionalized with pyridine groups, was synthesized and used for extraction and preconcentartion of palladium(II) ions from some water samples. The effects...
New Polyamides Derived from 2,5-Bis[(4-carboxyanilino) carbonyl] Pyridine and Hydantoin Derivatives: Synthesis and Characterization
Polyamides, pyridyl moiety hydantoin derivatives direct polycondensation
2010/4/16
We synthesized 2,5-bis[(4-carboxyanilino) carbonyl] pyridine (4) as a new monomer containing pyridyl moiety by using a 2-step reaction. At first 2,5-pyridine dicarboxylic acid (1) was converted to 2,5...
Pyridine and Benzene Templated Potential Peptidomimetics
Pyridine Benzene Potential Peptidomimetics
2010/4/22
This study provides a new approach for the synthesis of pyridine and benzene templated potential peptidomimetics. By the attachment of various amino acid side chains in different combinations on the p...
Thermodynamic and Kinetic Parameters Concerning Complex Formation between 3-Hydroxy- and 1-Aminopyrene and Pyridine
Thermodynamic Kinetic Parameters Concerning Pyridine
2010/4/22
Systems formed by the pyrene derivatives 3-hydroxypyrene and 1-aminopyrene with pyridine were studied. The thermodynamic and kinetic parameters of the systems were calculated using the changes in the ...
Fluorimetric Detection of Insulin in the Presence of Eu(III) - {Pyridine - 2,6 - Dicarboxylate} Tris Complex
Insulin Fluorescence Spectroscopy Eu(III) - { Pyridine - 2,6 - Dicarboxylate } Tris Complex Stern-Volmer Plots Apparent Binding Constant
2010/6/27
Bovine insulin solutions (pH=9.3) have maximum absorption at 278 \pm 2 nm and an intrinsic emission at 305 nm when excited at 282 nm. The relative fluorescence intensities show linear dependence on it...
Evaluation of the Acidity of Pillared Montmorillonites by Pyridine Adsorption
Acidity Al-Pillared Montmorillonite Mesoporous Materials Pyridine Adsorption Zr-Pillared Montmorillonite
2011/12/6
Abstract: Two series of pillared clays were prepared from a purified montmorillonite (95%) from La Serrata of Nijar, Spain, and polycations of Al and Zr using various methods. The effect of both the p...
Acidity of Silica-Alumina Catalysts By Amine Titration Using Hammett Indicators and FT-IR Study of Pyridine Adsorption
Acidity of Silica-Alumina Catalysts Amine Titration Hammett Indicators FT-IR Study Pyridine Adsorption
2010/6/30
In this study, characterization and surface acidity of Siral (SiO2-Al2O3) compounds were investigated with Hammett acidity functions, the n-butylamine titration method and FTIR analysis of the spectra...
Kaolinite-Pyridine Intercalation Compound derived from Hydrated Kaolinite
Hydrated kaolinite Infrared spectroscopy Intercalation Kaolinite Nuclear magnetic resonance Pyridine X-ray powder diffraction
2012/1/5
A kaolinite-pyridine intercalation compound was prepared using hydrated kaolinite as an intermediate. Hydrated kaolinite having a basal spacing of 10 侌 was treated with pyridine to form a well-ordered...
Review of the Diffusion of Water and Pyridine in the Interlayer Space of Montmorillonite: Relevance to Kinetics of Catalytic Reactions in Clays
Catalysis Diffusion Interlayer space Kinetics Montmorillonite Pyridine Water
2012/2/1
With the current interest in the use of transition metal-exchanged phyllosilicates as catalysts for novel organic syntheses, investigations into the factors which affect the movement of reactant, prod...
The Diffusion of Interlamellar Water in the 23.3 A Na-Montmorillonite:Pyridine/H2O Intercalate by Quasielastic Neutron Scattering
Diffusion Intercalate Montmorillonite Neutron Pyridine Quasielastic
2012/2/9
The diffusion of water in the title intercalate has been measured by quasielastic neutron scattering. The diffusion coefficient (6.1 × 10−7 cm2 s−1 at 23.5°C) is one order less than that f...
Adsorption of Pyridine N-Oxide onto Montmorillonite
Adsorption Pyridine N-Oxide Montmorillonite
2012/2/15
Pyridine N-oxide and montmorillonite form interlamellar complexes with basal spacings of 14·7 and 21 ∈. The former corresponds to a monolayer with a tilted orientation of the pyridine ring; the latter...