Spectrophotometric determination of cobalt(II) with eriochrome black T after extraction as methyltrioctylammonium tetrathiocyanatocobaltate(II).
スポンサーリンク
概要
- 論文の詳細を見る
A sensitive extraction-spectrophotometrie method for determination of cobalt(II) with Eriochrome Black T is described, which involves the preliminary separation of cobalt from aqueous solution by the benzene extraction of methyltrioctylammonium tetrathiocyanatocobaltate(II). The quantitative formation of ion pair between cobalt–Eriochrome Black T complex anion and the quaternary ammonium cation is attained by shaking the resulting extract with aqueous Eriochrome Black T solution of pH 5.5–8.2. Beer's law holds for 0.57–4.0 μg cobalt in 5 ml of the extract with the molar absorption coefficient of ε<SUB>587</SUB>=6.62×10<SUP>4</SUP> cm<SUP>−1</SUP> mol<SUP>−1</SUP>l (Sandell sensitivity 8.90×10<SUP>−4</SUP> μg cm<SUP>−2</SUP>). The composition of the extracted ion pair is estimated to be cobalt: Eriochrome Black T:methlytrioctylammonium ion=1:2:3.
- 公益社団法人 日本化学会の論文
著者
-
Sugawara Masao
Department Of Chemistry College Of Humanities And Sciences Nihon University
-
Kambara Tomihito
Department Of Chemistry Faculty Of Science Hokkaido University
関連論文
- Design and Application of Ion-Channel Sensors Based on Biological and Artificial Receptors
- Potentiometric Responses of Polymeric Liquid Membranes Based on Hydrophobic Chelating Agents to Metal Ions
- Nitrogenous Synergists Induced Potentiometric Response to Metal Ions with Polymeric Liquid Membranes Containing Thenoyltrifluoroacetone as an Ionophore
- Potentiometric Responses of Ionophore-Incorporated Bilayer Lipid Membranes with and without Added Anionic Sites
- Concentration of Dopamine by Proton-Driven Uphill Transport Using Lasalocid A as the Carrier
- Glucose Oxidase-immobilized Glass Disks for Imaging of D-Glucose in Acute Brain Slices
- In Vitro Measurements of Extracellular L-Glutamate Level in Region CA3 of Mouse Hippocampal Slices under Chemical Stimulation
- Single-Chanel Recordings of Gramicidin at Agarose-Supported Bilayer Lipid Membranes Formed by the Tip-Dip and Painting Methods
- Detection and Imaging of L-Glutamate Released from Mouse-Brain Slices with an Enzyme-Based Membrane
- The Mass Variation with Velocity in Bopp's Unitary Field Theory, I
- On the Effects of Excited States of Nucleons upon Static Nuclear Potential in Symmetrical Pseudoscalar Meson Theory, I : Derivation of Nuclear Potential and Qualitative Conclusions
- Pion-nucleon Scattering and Nucleon Isobar
- A Surface Plasmon Resonance Sensor for Substance P Using Gold-Modified Calmodulin and Melittin
- Remarks on Levy's Fourth Order Potential
- Arachidonic Acid-Induced Channel and Carrier-Type Ion Transport across Planar Bilayer Lipid Membranes
- HIGH PERFORMANCE LIQUID CHROMATOGRAPHIC SEPARATION OF IRON (III) CHELATES WITH AMINOCARBOXYLIC ACIDS ON SILICAGEL COLUMN
- A Glass Capillary Microelectrode Based on Capillarity and Its Application to the Detection of L-Glutamate Release from Mouse Brain Slices
- Selection Rules for Decays of π-Mesons and V-Particles
- Remarks on Bethe's Neutral Theory of Nuclear Force
- A Glass Capillary Ultramicroelectrode with an Electrokinetic Sampling Ability
- The Mass Variation with Velocity in the Bopp's Unitary Field Theory, II
- The Relativistic and Exchange Current Corrections to the Deuteron Magnetic Moment and the Thermal N-P Capture Cross Section
- Comparison of the L-Glutamate Level in Mouse Hippocampal Slices under Tetraethylammonium Chloride Stimulation as Measured with a Glass Capillary Sensor and a Patch Sensor
- CATALYMETRIC DETERMINATION OF IRON (III) AND ZIRCONIUM(IV) BY THEIR EFFECTS ON THE HYDROGEN PEROXIDE-IODIDE REACTION WITH THE AID OF IODIDE ION-SELECTIVE ELECTRODE
- On the Origin of Primary Cosmic Radiation
- Planar Lipid Bilayers Containing Gramicidin A as a Molecular Sensing System Based on an Integrated Current
- A.C. Polarographic Determination of Free Sulfur in Vulcanizates
- Retention behavior of iron(III) chelates with amine-N-carboxylic acids on silica-gel and octadecyl-silica columns.
- Determination of ethylenediaminetetraacetic acid and nitrilotriacetic acid as their iron(III)-complexes by reversed phase high performance liquid chromatography.
- Application of coagulated ion-exchanger colorimetry to the determination of trace amounts of phosphate in water.
- Fractional spectrophotometric determination of ethylenediaminetetraacetate and nitrilotriacetate as their iron(III) complexes by use of H- and Na-form ion exchange resin columns.
- Enrichment and determination of trace amounts of iron as the colored complex on the thin layer of ion-exchange resins.
- Application of the AC Polarographic Method to the Microdetermination of the Sulfide Ion by the Methylene Blue Procedure
- Coagulated ion-exchanger colorimetry for the determination of trace amounts of sulfide as methylene blue.
- Polarographic behavior of cobalt-1-nitroso-2-naphthol complex in ammonium citrate and tartrate solutions.
- Curve fitting methods applied to the elucidation of asymmetric gas-liquid chromatographic peaks.
- Dissolution of metallic copper in ethylenediaminetetraacetate solution in the presence of hydrogen peroxide.
- Gas chromatography under the column outlet pressure higher than atmospheric.
- Reaction of Iron(III)-Form Ion Exchanger with Acetylacetone
- Fluorometric determination of aluminium(III) and cadmium(II) by solvent extraction of the ternary complex composed of metal ion, 8-hydroxy-5-quinolinesulfonic acid, and methyltrioctylammonium ion.
- Spectrophotometric determination of cobalt(II) with eriochrome black T after extraction as methyltrioctylammonium tetrathiocyanatocobaltate(II).
- Spectrophotometric Study on the Extraction of Magnesium(II)–8-Hydroxyquinoline-5-sulfonic Acid Chelate Anion with Zephiramine
- Conversion of cobalt(II) and nickel(II) fixed on the ion exchange resin into their trifluoroacetylacetonates and gas chromatography of the chelates.
- The Indirect Determination of Microamounts of Mercury(II) by Means of Dithizone Extraction and AC Polarography
- Spectrophotometric Study on the Extraction of the Ternary Complex Composed of Vanadium(V), 8-Hydroxyquinoline-5-sulfonic Acid and Zephiramine
- Reaction of mercury(II)-ethylenediaminetetraacetate-capriquat complex with potassium iodide in 1,2-dichloroethane and its application to the spectrophotometric determination of mercury(II).
- Reaction of Nickel Ion Fixed on the Ion Exchange Resin with 2-Thenoyltrifluoroacetone
- Application of a coagulated mixture prepared from finely divided cation and anion exchange resins to the enrichment of copper(II).
- Use of the copper(II) ion-selective electrode for the determination of the stability constant of binuclear copper(II) complex with 3,6-dioxaoctane-1,8-diamine-N,N,N',N'-tetraacetric acid.
- Implantable Patch Sensor for L-Glutamate in Hippocampal Slices