Fundamentals and applications of the indication using adsorption polarized electrodes for micro- and trace-titration analysis.

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  • UMLAND Fritz
    Anorganisch-Chemisches Institut, Lehrstuhl für Anorganisch-Analytische Chemie der Westfälischen Wilhelms-Universität Corrensstr
  • SCHUMACHER Egon
    Anorganisch-Chemisches Institut, Lehrstuhl für Anorganisch-Analytische Chemie der Westfälischen Wilhelms-Universität Corrensstr

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Other Title
  • Fundamentals and Applications of the Indication Using Adsorption Polarized Electrodes for Micro- and Trace-Titration Аnalysis
  • Fundamentals and Applications of the In

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Description

Indicator-electrodes show polarization-effects according to surface quality due to adsorption. The combination of two identical but differently surface-treated electrodes (APE arrangement) indicates endpoints of titrations by characteristic signals. The fundamentals and application examples for precipitation- and redox-titrations will be described. By exploitation of capacitive effects, furthermore, ions like SO42- and PO43- can be indicated which otherwise are hardly accessible electrometrically. Also catalytic effects of adsorbed layers can be utilized, e.g. in complexometry. Special advantages of the APE method are: a diaphragm is not necessary, therefore direct serviceable in mixed solvents; adsorptive enrichment of the measuring ions; high indication exactness; simple measuring pattern.

Journal

  • BUNSEKI KAGAKU

    BUNSEKI KAGAKU 30 (10), S1-S10, 1981

    The Japan Society for Analytical Chemistry

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