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Development of a cloud point extraction and preconcentration method for Cd and Ni prior to flame atomic absorption spectrometric determination
Abstract In this work a new cloud point extraction (CPE) methodology was developed for the separation and preconcentration of cadmium and nickel. The analyte in the initial aqueous solution wasExpand
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Kinetic Study of the Electrooxidation of Mefenamic Acid and Indomethacin Catalysed on Cobalt Hydroxide Modified Glassy Carbon Electrode
Electrocatalytic oxidation of two anti-inflammatory drugs (Mefenamic acid and Indomethacin) was investigated on a cobalt hydroxide modified glassy carbon (CHM-GC) electrode in alkaline solution. TheExpand
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Kinetic Study of the Electro-Catalytic Oxidation of Hydrazine on Cobalt Hydroxide Modified Glassy Carbon Electrode
Electrocatalytic oxidation of hydrazine was investigated on a cobalt hydroxide modified glassy carbon (CHM-GC) electrode in alkaline solution. The process of oxidation involved and its kinetics wereExpand
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A study of the electrocatalytic oxidation of cyclohexanol on copper electrode
Electrocatalytic oxidation of cyclohexanol was investigated on copper electrode in alkaline solution. The process of oxidation involved and its kinetics were established by using cyclic voltammetry,Expand
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Copper (hydr)oxide modified copper electrode for electrocatalytic oxidation of hydrazine in alkaline media
Abstract Stable copper (hydr)oxide modified copper electrode was prepared by cyclic voltammetry in 0.1 M NaOH solution in the potential range of −300 to 800 mV. In the first cycle the oxidation peaksExpand
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A selective optical chemosensor based on a thia-containing Schiff-base iron(III) complex for thiocyanate ion.
A new optode membrane for the sensitive and selective determination of thiocyanate ion, based on a change in the absorption spectrum of a polymer film, is proposed. A membrane composed of plasticizedExpand
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Selective cloud point extraction and preconcentration of trace amounts of silver as a dithizone complex prior to flame atomic absorption spectrometric determination
Dithizone (diphenylthiocarbazone) was used as a complexing agent in cloud point extraction for the first time and applied for selective preconcentration of trace amounts of silver. The analyte in theExpand
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Modified copper wire as solid-phase microextraction fiber, selective extraction of some amines
SummaryThis paper presents results obtained using modified copper wire as a solid-phase microextraction (SPME) fiber. Modified copper fibers were prepared by dipping cleaned copper wires (350 μmExpand
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Cobalt hydroxide nanoparticles modified glassy carbon electrode as a biosensor for electrooxidation and determination of some amino acids.
The electrochemical behavior of some amino acids was investigated on cobalt hydroxide nanoparticles modified glassy carbon (CHM-GC) electrode in alkaline solution. The process of oxidation and itsExpand
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Sensitive and simple cloud-point preconcentration atomic absorption spectrometry: application to the determination of cobalt in urine samples.
A new approach for developing a cloud-point extraction-flame atomic absorption spectrometric method has been described and used for the determination of cobalt. In this approach, water was removedExpand
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