PL420051A1 - Method for determination of measuring accuracy of a voltamperometric electrode - Google Patents

Method for determination of measuring accuracy of a voltamperometric electrode

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Publication number
PL420051A1
PL420051A1 PL420051A PL42005116A PL420051A1 PL 420051 A1 PL420051 A1 PL 420051A1 PL 420051 A PL420051 A PL 420051A PL 42005116 A PL42005116 A PL 42005116A PL 420051 A1 PL420051 A1 PL 420051A1
Authority
PL
Poland
Prior art keywords
determined
electrode
voltage
reduction reaction
oxidation
Prior art date
Application number
PL420051A
Other languages
Polish (pl)
Other versions
PL231529B1 (en
Inventor
Krzysztof Suchocki
Original Assignee
Politechnika Gdańska
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Politechnika Gdańska filed Critical Politechnika Gdańska
Priority to PL420051A priority Critical patent/PL231529B1/en
Publication of PL420051A1 publication Critical patent/PL420051A1/en
Publication of PL231529B1 publication Critical patent/PL231529B1/en

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  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)

Abstract

Sposób wyznaczania dokładności pomiarowej elektrody woltamperometrycznej, schematycznie przedstawiony na rysunku, charakteryzuje się tym, że badaną elektrodę polaryzuje się napięciem, którego wartość zmienia się w ustalonym czasie z tym, że przedział wartości napięcia w zakresie od napięcia początkowego Up ox do napięcia końcowego Uk ox dla reakcji utleniania, oraz przedział wartości napięcia w zakresie od napięcia początkowego Up red do napięcia końcowego Uk red dla reakcji redukcji dobiera się tak, aby na powierzchni badanej elektrody przebiegała odwracalna reakcja utleniania/redukcji i aby w układzie pomiarowym płynęła wartość graniczna prądu reakcji utleniania/redukcji. Następnie porównuje się wartości zmierzonego prądu płynącego przez elektrodę pomiarową. Dla zmierzonych wartości natężenia wyznacza się stałą czasową dla reakcji utleniania i wyznacza się częstotliwość graniczną dla reakcji utleniania i wyznacza się stałą czasowa dla reakcji redukcji i wyznacza się częstotliwość graniczną dla reakcji redukcji, po czym w oparciu o wyznaczone parametry ustala się dokładność pomiarową badanej elektrody.The method of determining the measuring accuracy of a voltammeter electrode, schematically shown in the figure, is characterized by the fact that the tested electrode is polarized with a voltage whose value changes in a fixed time, but the voltage range in the range from the initial voltage Up ox to the final voltage Uk ox for oxidation reaction, and the voltage range in the range from the initial voltage Up red to the final voltage Uk red for the reduction reaction is selected so that a reversible oxidation / reduction reaction takes place on the surface of the tested electrode and that the limit value of the oxidation / reduction reaction current flows in the measuring system . Then the values of the measured current flowing through the measuring electrode are compared. For the measured intensity values, the time constant for the oxidation reaction is determined and the cut-off frequency for the oxidation reaction is determined and the time constant for the reduction reaction is determined and the cut-off frequency for the reduction reaction is determined, then the measuring accuracy of the tested electrode is determined based on the determined parameters.

PL420051A 2016-12-30 2016-12-30 Method for determination of measuring accuracy of a voltamperometric electrode PL231529B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL420051A PL231529B1 (en) 2016-12-30 2016-12-30 Method for determination of measuring accuracy of a voltamperometric electrode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL420051A PL231529B1 (en) 2016-12-30 2016-12-30 Method for determination of measuring accuracy of a voltamperometric electrode

Publications (2)

Publication Number Publication Date
PL420051A1 true PL420051A1 (en) 2018-07-02
PL231529B1 PL231529B1 (en) 2019-03-29

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ID=62705207

Family Applications (1)

Application Number Title Priority Date Filing Date
PL420051A PL231529B1 (en) 2016-12-30 2016-12-30 Method for determination of measuring accuracy of a voltamperometric electrode

Country Status (1)

Country Link
PL (1) PL231529B1 (en)

Also Published As

Publication number Publication date
PL231529B1 (en) 2019-03-29

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