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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 ...
Evaluation of solid-phase extraction sorbent with ketoimine groups for the preconcentration of benzene and phenolic compounds in water
Modified silica solid-phase extraction SPE
2010/10/18
The applicability of silica gel, modified with ketoimine groups, to solid phase extraction (SPE) was tested. Basic characteristics of the modified silica were determined using elemental analysis, and ...
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...
Investigation of Some 1,3-Diols for the Requirements of Solvent Extraction of Boron: 2,2,6-Trimethyl-1,3 Heptanediol as a Potential Boron Extractant
1,3-Diols Solvent Extraction of Boron: 2,2,6-Trimethyl-1,3 Heptanediol
2010/4/19
Eighteen 1,3-diols were synthesized and their structure and distribution ratio for the solvent extraction of boron were studied. Diols with a high distribution ratio (D_{B(OH)_3 > 10) were investigate...
Solid Phase Extraction of Copper(II) by Modified Octadecyl Silica Membrane Disks with 3-{2-[2-(2-Hydroxyimino-1-methyl-propylideneamino)- ethylamino]-ethyl-imino}-butan-2-one~Oxime
Copper solid phase extraction ultratrace elements silica membrane
2010/4/21
A simple, selective and rapid method for determining trace amounts of copper(II) ions in various types of water samples using atomic absorption spectrophotometry was investigated. Copper(II) ions fro...
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...
Comparison of Supercritical Fluid and Solvent Extraction of Feverfew (Tanacetum parthenium)
Supercritical Fluid Solvent Extraction
2010/4/22
High performance liquid chromatography (HPLC) and supercritical fluid chromatography (SFC) analyses are used to show that supercritical fluid extraction (SFE) using carbon dioxide is an effective mean...
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...
Extraction Equilibria of Nicotinic Acid Using Alamine 300/Diluent and Conventional Solvent Systems
Extraction equilibria Nicotinic acid Alamine 300 Modeling
2010/4/22
The distribution of nicotinic acid between water and Alamine 300 (tri-n-octylamine) dissolved in various (proton-donating and -accepting, polar and nonpolar) diluents, and a comparison with the extrac...
Copper Extraction from Aqueous Solution by Pentaerythrityl Tetrabenzylamine
Solvent extraction copper(II) pentaerythrityl tetrabenzylamine
2010/4/23
The extraction of copper(II) from the aqueous phase with pentaerythrityl tetrabenzylamine (PETBA), which was synthesized from pentaerythrityl tetrabromide and benzyl amine, was studied. The influences...
Solvent Extraction of Fe3+ Cation by Diazo-Coupling Calix[4]arenes
Solvent Extraction Fe3+ Cation Diazo-Coupling Calix[4]arenes
2010/6/28
The solvent extraction of Fe3+ cations from the aqueous to the organic (chloroform) phase was carried out using p-tert-butyl calix[4]arene(\underline{1}), calix[4]arene(\underline{2}), diazo-coupling ...
Supercritical CO2 Extraction of Ethanol
Ethanol Supercritical Fluid Extraction Supercritical CO2
2010/6/29
Extraction of ethanol was studied from both synthetic ethanol solution and fermentation broth using supercritical CO2 in an extraction apparatus in ranges of 313 to 333 K and 80 to 160 atmospheres, fo...
Solvent Extraction of La3+ withEthylenediamine-N,N'-ditetradecyl-N,N'-diacetic Acid(EDDAT) in Dichloromethane
Solvent Extraction La3+ withEthylenediamine-N,N'-ditetradecyl-N,N'-diacetic Acid(EDDAT) Dichloromethane
2010/6/30
Ethylenediamine-N,N'-ditetradecyl-N,N'-diacetic acid (EDDAT) was synthesized for the solvent extraction of La3+. EDDAT was prepared from ethylenediamine-N,N'-diacetic acid (EDDA) and tetradecyl bromid...