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Related Concept Videos

Voltammetry: Overview01:20

Voltammetry: Overview

Voltammetry is an electroanalytical technique in which the current flowing through an electrochemical cell is measured as a function of applied potential, typically under conditions of concentration polarization. The technique provides valuable information about redox-active species, and the current response is plotted as a voltammogram.
A voltammetric cell uses three electrodes: a working electrode, a reference electrode, and an auxiliary electrode. The redox reactions occur in the working...
Voltammetry: Factors Affecting Measurements01:21

Voltammetry: Factors Affecting Measurements

A current produced due to the redox reactions of the analyte at the working and auxiliary electrodes is called a faradaic current. The reaction can be divided into two types. The current generated due to the reduction of the analyte is called cathodic current, and it carries a positive charge. In contrast, the current produced by analyte oxidation is known as an anodic current, and it has a negative charge. The applied potential at the working electrode determines the faradaic current flow, and...
Voltammetric Techniques: Linear-Scan (E vs Time)01:12

Voltammetric Techniques: Linear-Scan (E vs Time)

Polarography is a classical voltammetric technique used to analyze electrochemical reactions. This method applies a linear potential sweep to a dropping mercury electrode (DME), and the resulting current is measured. A dropping mercury electrode is commonly used as the working electrode in polarography. It consists of a capillary tube filled with mercury, where the tiny droplet forms at the tip. This droplet continuously drops from the capillary, creating a new electrode surface for each...
Voltammetric Techniques: Pulse Voltammetry01:17

Voltammetric Techniques: Pulse Voltammetry

Differential-pulse voltammetry (DPV) is a type of voltammetry that involves applying a series of voltage pulses to an electrochemical cell while measuring the resulting current. In DPV, the differential pulse or small potential pulses are superimposed on a linear potential sweep. The magnitude of these pulses is typically small, often in the millivolt range. Each voltage pulse lasts a short duration, usually in the order of a few milliseconds, and is applied at regular intervals along the...
Voltammetric Techniques: Cyclic Voltammetry01:10

Voltammetric Techniques: Cyclic Voltammetry

Cyclic voltammetry (CV) is an electrochemical technique used to investigate the redox properties of a chemical species. It involves measuring the current response of an electrochemical cell as a function of the applied potential. The setup for cyclic voltammetry typically consists of a working electrode, a reference electrode, and a counter electrode—all immersed in an electrolyte solution. The working electrode is where the redox reaction of interest occurs, while the reference electrode...
Voltammetry: Stripping Methods01:13

Voltammetry: Stripping Methods

Anodic Stripping Voltammetry (ASV), Cathodic Stripping Voltammetry (CSV), and Adsorptive Stripping Voltammetry (AdSV) are electrochemical techniques used to determine trace amounts of analytes in solution. These methods involve applying a potential to an electrode and measuring the resulting current.
Anodic Stripping Voltammetry (ASV)
ASV is used to determine metals and metalloids at trace levels. It involves two steps: deposition and stripping. First, a negative potential is applied to the...

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Related Experiment Video

Updated: Jul 6, 2026

Determination of Carbonyl Functional Groups in Bio-oils by Potentiometric Titration: The Faix Method
07:56

Determination of Carbonyl Functional Groups in Bio-oils by Potentiometric Titration: The Faix Method

Published on: February 7, 2017

[Studies on the voltammetric behaviour of barbaloin and its application].

Q L Li1, L Ren, J B Hu

  • 1Department of Chemistry, Beijing Normal University, Beijing 100875.

Yao Xue Xue Bao = Acta Pharmaceutica Sinica
|October 13, 2001
PubMed
Summary

Single-sweep osciflopolarography effectively detected barbaloin in sulfuric acid. This electrochemical method offers a sensitive detection limit for barbaloin quantification.

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Last Updated: Jul 6, 2026

Determination of Carbonyl Functional Groups in Bio-oils by Potentiometric Titration: The Faix Method
07:56

Determination of Carbonyl Functional Groups in Bio-oils by Potentiometric Titration: The Faix Method

Published on: February 7, 2017

Electrochemical Impedance Spectroscopy as a Tool for Electrochemical Rate Constant Estimation
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Electrochemical Impedance Spectroscopy as a Tool for Electrochemical Rate Constant Estimation

Published on: October 10, 2018

Using Cyclic Voltammetry, UV-Vis-NIR, and EPR Spectroelectrochemistry to Analyze Organic Compounds
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Using Cyclic Voltammetry, UV-Vis-NIR, and EPR Spectroelectrochemistry to Analyze Organic Compounds

Published on: October 18, 2018

Area of Science:

  • Electrochemistry
  • Analytical Chemistry

Context:

  • Barbaloin analysis requires sensitive detection methods.
  • OscillopPolarography offers a unique electrochemical approach.

Purpose:

  • To establish a sensitive electrochemical method for barbaloin detection.
  • To characterize the voltammetric behavior of barbaloin.

Summary:

  • A well-defined reduction wave for barbaloin was observed using single-sweep osciflopolarography in 0.1 mol.L-1 H2SO4.
  • The method demonstrated a linear relationship between peak current and barbaloin concentration from 2.0 x 10(-7) to 6.0 x 10(-6) mol.L-1.
  • A low detection limit of 2.0 x 10(-7) mol.L-1 was achieved, indicating high sensitivity.

Impact:

  • Provides a novel and sensitive electrochemical technique for barbaloin quantification.
  • Contributes to the understanding of barbaloin's electrochemical properties.
  • Potential applications in fields requiring barbaloin analysis.