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- https://chem.libretexts.org/Bookshelves/Analytical_Chemistry/Analytical_Chemistry_2.1_(Harvey)/11%3A_Electrochemical_Methods/11.03%3A_Coulometric_MethodsThe text explains potentiometric analysis and introduces various electrochemical techniques, emphasizing coulometry. Coulometry measures analyte concentration through exhaustive electrolysis, with two...The text explains potentiometric analysis and introduces various electrochemical techniques, emphasizing coulometry. Coulometry measures analyte concentration through exhaustive electrolysis, with two types: controlled-potential and controlled-current. Controlled-potential maintains a constant electrode potential to achieve 100% current efficiency, while controlled-current maintains constant current.
- https://chem.libretexts.org/Bookshelves/Analytical_Chemistry/Instrumental_Analysis_(LibreTexts)/24%3A_Coulometry/24.02%3A_An_Introduction_to_Coulometric_Methods_of_AnalysisIn this section we consider the experimental parameters and instrumentation needed to develop a controlled-potential coulometric method of analysis and its applications.
- https://chem.libretexts.org/Courses/Los_Angeles_Trade_Technical_College/Analytical_Chemistry/2%3A_Analytical_Chemistry_2.0_(Harvey)/12%3A_Electrochemical_Methods/12.1%3A_Overview_of_ElectrochemistryThe focus of this chapter is on analytical techniques that use a measurement of potential, charge, or current to determine an analyte’s concentration or to characterize an analyte’s chemical reactivit...The focus of this chapter is on analytical techniques that use a measurement of potential, charge, or current to determine an analyte’s concentration or to characterize an analyte’s chemical reactivity. Collectively we call this area of analytical chemistry electrochemistry because its originated from the study of the movement of electrons in an oxidation–reduction reaction. Despite the difference in instrumentation, all electrochemical techniques share several common features.
- https://chem.libretexts.org/Bookshelves/Analytical_Chemistry/Instrumental_Analysis_(LibreTexts)/25%3A_Voltammetry/25.02%3A_Voltammetric_InstrumentationAlthough early voltammetric methods used only two electrodes, a modern voltammeter makes use of a three-electrode potentiostat. The potential of the working electrode is measured relative to a constan...Although early voltammetric methods used only two electrodes, a modern voltammeter makes use of a three-electrode potentiostat. The potential of the working electrode is measured relative to a constant-potential reference electrode that is connected to the working electrode through a high-impedance potentiometer. The auxiliary electrode generally is a platinum wire and the reference electrode usually is a SCE or a Ag/AgCl electrode.
- https://chem.libretexts.org/Bookshelves/Analytical_Chemistry/Analytical_Chemistry_2.1_(Harvey)/11%3A_Electrochemical_Methods/11.01%3A_Overview_of_ElectrochemistryThis chapter focuses on analytical electrochemistry, which uses measurements of potential, current, or charge to determine analyte concentration or chemical reactivity. Key concepts include the relati...This chapter focuses on analytical electrochemistry, which uses measurements of potential, current, or charge to determine analyte concentration or chemical reactivity. Key concepts include the relationship between electrode potential and analyte form, differences in surface and bulk concentrations, current's role in measuring redox rates, and the balance between controlling current and potential.
