PL420051A1 - Method for determination of measuring accuracy of a voltamperometric electrode - Google Patents
Method for determination of measuring accuracy of a voltamperometric electrodeInfo
- 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
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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.
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 |
Family
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) |
-
2016
- 2016-12-30 PL PL420051A patent/PL231529B1/en unknown
Also Published As
Publication number | Publication date |
---|---|
PL231529B1 (en) | 2019-03-29 |
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