11 research outputs found

    Low Temperature Infrared Cell

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    A simple low temperature cell for 1nfrared a:bsorpti100 measurements oif liquid and solid samples is descflibed. It -is possible to analyse three samples in turn without dismantling and heating the cell to room temperature

    Low Temperature Infrared Cell

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    A simple low temperature cell for 1nfrared a:bsorpti100 measurements oif liquid and solid samples is descflibed. It -is possible to analyse three samples in turn without dismantling and heating the cell to room temperature

    A New Electrode System With Efficient Mixing of Electrolyte

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    In the last decade, many authors have emphasized the exceptional possibilities of polarography and the related advanced techniques for the determination and physico-chemical characterization of dissolved trace metals in natural aquatic systems.In addition to the quantitative aspects, it is also possible to characterize the physicochemical state of ionic species in natural and polluted wate rs. This is oL particular importance for the inve stigation of basic biogeochemical processes. These methods could be used for the elucidation of mechanisms and pathways in the biogeochemical cycles of a particular metal in natural and polluted aquatic systems

    A Device for a Vibrating Dropping Mercury Electrode

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    A new device for a vibrating dropping mercury electrode is described. The applicability of the new electrode for the measurements of polarographic waves in the presence of a surface blocking substances is reported. The possibilities of the VDME for the speciation of certain metal ions in multiligand systems are discussed·

    A Device for a Vibrating Dropping Mercury Electrode

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    A new device for a vibrating dropping mercury electrode is described. The applicability of the new electrode for the measurements of polarographic waves in the presence of a surface blocking substances is reported. The possibilities of the VDME for the speciation of certain metal ions in multiligand systems are discussed·

    A Universal Voltammetric Cell

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    In eleotroanalytical research it is desirable to wor·k with a cell which is easily used for various electrochemical measurements. The requirem~μts for such a cell are: 1) ability to function with different types of electrodes,, 2) perfectly reproducible hydrodynamic conditions, 3) ·simple replacement \u27of the sample and electrodes, and 4) construction material which is inert in respect to the sample

    A New Electrode System With Efficient Mixing of Electrolyte

    Get PDF
    In the last decade, many authors have emphasized the exceptional possibilities of polarography and the related advanced techniques for the determination and physico-chemical characterization of dissolved trace metals in natural aquatic systems.In addition to the quantitative aspects, it is also possible to characterize the physicochemical state of ionic species in natural and polluted wate rs. This is oL particular importance for the inve stigation of basic biogeochemical processes. These methods could be used for the elucidation of mechanisms and pathways in the biogeochemical cycles of a particular metal in natural and polluted aquatic systems

    Possibilities for Misinterpretation in ASV-Speciation Studies of Natural Waters

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    Die Probleme, die bei Speciesuntersuchungen von Spurenelementen mit Hilfe der Differentialpuls Anodic Stripping Voltammetrie auftreten, werden zu-sammenfassend dargestellt. Neben den bei der eigentlichen Bestimmung auftretenden Problemen, werden auch solche erwähnt, die mit der Probennahme sowie der Lagerung und Vorbehandlung der Proben in Zusammenhang stehen
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