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Solid phase extraction of copper, nickel, and cobalt in water samples after extraction using surfactant coated alumina modified with indane-1,2,3-trione 1,2-dioxime and determination by flame atomic absorption spectrometry
Solid phase extraction surfactant coated alumina atomic absorption spectrometry
2010/12/3
A simple method for simultaneous pre-concentration of Cu, Ni, and Co metal ions prior to their determination by flame atomic absorption spectrometry is reported. The method is based on the extraction ...
'Solid phase extraction of Copper, Nickel and Cobalt in water samples after extraction using surfactant Coated alumina modified with Indane-1,2,3-trione 1,2-dioxime and determination by flame atomic absorption
Solid phase extraction surfactant coated alumina atomic absorption spectrometry
2010/10/19
A simple method for simultaneous pre-concentration of Cu, Ni, and Co metal ions prior to their determination by flame atomic absorption spectrometry is reported. The method is based on the extraction ...
Synthesis, structural determination, and biological activity of new 7-hydroxy-3-pyrazolyl-4H-chromen- 4-ones and their o-b-D-glucosides
Chromones pyrazoles glucopyranosyl bromide glucosylation
2010/10/15
A convenient route to synthesize some new medicinally important 7-hydroxy-3-pyrazolyl chromones (3a-i) is described. The interaction of 7-hydroxy-3-formyl chromone (1) with various substituted acetoph...
Application of a Three-Stage Sequential Extraction Procedure for the Determination of Extractable Metal Contents in Highway Soils
Sequential extraction heavy metals highway soils enrichment flame atomic absorption spectrometry
2010/4/21
A sequential extraction procedure, a three-step protocol proposed by the Standards, Measurements and Testing programme (SM & T--formerly BCR) of the European Union, was applied to soil samples for the...
Potentiometric Determination of the Stability Constants of Lanthanide Complexes with Iminodiacetic Acid in Water and Dioxane-Water Mixtures
Iminodiacetic acid lanthanide(III) complexes stability constants dioxane-water mixtures
2010/4/15
The protonation constants of iminodiacetic acid (H2 ida) and the stability constants of its complexes with Nd(III), Sm(III), Gd(III), Dy(III), and Er(III) ions at metal/ligand mole ratios of 1:1, 1:2,...
Trace Element Determination in Brassica oleraceae var. acephale by Differential Pulse Polarography
Cabbage cole trace elements determination differential pulse polarography
2010/4/19
A fast and simple differential pulse polarographic (DPP) method for the determination of trace elements in a certain form of cabbage is described. This vegetable is commonly used as food in Turkey, es...
Determination of Selenium(IV) Using o-Phenylenediamine by Differential Pulse Polarography/Interference of Metal Ions
Selenium determination o-phenylenediamine Interference's problem Polarography
2010/4/20
A new sensitive and selective pulse polarographic method for the determination of Se(IV) next to interfering ions is described. This method is based on the highly sensitive peak formed by the reactio...
Differential Pulse Polarographic Determination of Cadmium After Solid Liquid Extraction and Preconcentration Using PAN
Trace cadmium determination differential pulse polarography 1-(2-pyridylazo)-2-naphthol
2010/4/21
A highly selective, sensitive, rapid and economical differential pulse polarographic method has been developed for the determination of trace amounts of cadmium in various samples after the adsorption...
Determination of Linear Alkylbenzene Sulphonates and their Biodegradation Intermediates by Isocratic RP-HPLC
Linear alkylbenzene sulphonates solid phase extraction sewage effluent water sediment separation HPLC ion pair agent
2010/4/22
An HPLC method was developed to determine linear alkylbenzene sulphonates (LASs) and their biotransformation products sulphophenyl carboxylates by isocratic chromatography using two C18 columns in ser...
The Use of Chloranilic Acid for the Spectrophotometric Determination of Three Antihistamines
Chloranilic Acid the Spectrophotometric Determination Three Antihistamines
2010/4/22
Cyproheptadine hydrochloride (CPH), methdilazine hydrochloride (MDH) and promethazine theoclate (PMT) were determined in their pure state and in pharmaceutical formulations by a simple spectrophotomet...
The Simultaneous Determination of Quinoline Yellow (E-104) and Sunset Yellow (E-110) in Syrups and Tablets by Second Derivative Spectrophotometry
Dyes derivative spectrophotometry pharmaceutical products Sunset Yellow Quinoline Yellow
2010/4/22
A very simple spectrophotometric method using measurements at zero-crossing wavelength is described for resolving binary mixtures of the food dyes, Sunset Yellow (E-110) and Quinoline Yellow (E-104). ...
Flow Injection Extraction - Spectrophotometric Determination of Bismuth with Di-(hydrogenated tallow alkyl) dimethylammonium Chloride
Extraction Flow-Injection Bismuth Di-(hydrogenatedtallowalkyl)dimethylammonium chloride
2010/4/22
Bismuth(III) (0-25 m g/ml) is determined spectrophotometricaly at 513 nm after extraction into dichloromethane of the ion associate di-(hydrogenatedtallowalkyl)dimethylammonium tetraiodobismuthate. Th...
Determination of the Thermodynamic Properties of Poly [2-(3-phenyl-3-methylcyclobutyl)-2-hydroxyethyl methacrylate-co-methacrylic acid] at Infinite Dilution by Inverse Gas Chromatography
Poly [2-(3-phenyl-3-methylcyclobutyl)-2-hydroxyethyl methacrylate-co-methacrylic acid] inverse gas chromatography polymer-solvent interactions
2010/6/27
Some thermodynamic quantities were obtained for the interactions of poly [2-(3-phenyl -3- methylcyclobutyl)-2-hydroxyethyl methacrylate-co-methacrylic acid] Poly (PCHEMA-co-MA) with alcohols, ketones,...
Ion-Selective Membrane Electrode for the Determination of a Novel Phenylpiperazine Antidepressant, Nefazodone
Ion-Selective Membrane Electrode the Determination of a Novel Phenylpiperazine Antidepressant Nefazodone
2010/6/27
The construction and performance characteristics of ion-selective membrane electrodes for a newly found phenylpiperazine antidepressant, Nefazodone (NFN), based on its ion-pair complexes with phosphot...
Determination of the Protonation Constants of 2-[4-Dimethylaminocinnamalamino] Benzoic Acid (DACAB) in Dioxane - Water Medium and Preparation of Some of its Transition Metal Complexes
Determination the Protonation Constants 2-[4-Dimethylaminocinnamalamino] Benzoic Acid (DACAB) in Dioxane - Water Medium and Preparation Transition Metal Complexes
2010/6/30
In this study, the Schiff base 2-[4-Dimethylaminocinnamalamino]- benzoic acid [(CH3)2N.C6H4.CH:CH.N.C6H4.COOH] (DACAB) was prepared by the reaction of 2-Aminobenzoic acid with p-Dimethylaminocinnamald...