Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

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...
Precipitation Gravimetry01:03

Precipitation Gravimetry

Precipitation gravimetry is based on converting an analyte into a sparingly soluble precipitate, which is separated by filtration and weighed. An ideal precipitate should be pure, insoluble, of known composition, and easily filtered from the reaction mixture.
In determining nickel by gravimetric analysis, a precipitant of ethanolic dimethylglyoxime is added to a hot nickel salt solution. This is quickly followed by the dropwise addition of dilute ammonia solution until precipitation occurs. A...
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...
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...
Precipitation Titration: Endpoint Detection Methods01:19

Precipitation Titration: Endpoint Detection Methods

In argentometric precipitation titrations, endpoints can be detected visually by the Mohr, Volhard, and Fajans methods. In the Mohr method, adding a soluble chromate indicator gives an initial yellow color to the analyte solution. As the titrant is added, the first excess of silver ions forms a red silver chromate precipitate, marking the endpoint. The solution pH should be maintained at about 8 by adding solid CaCO3.
In the Volhard method, a standard excess of AgNO3 is first added to the...
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...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Toward greener electrochemical sensors: Comparative study of biochar and carbon black as carbon-based materials in screen-printed electrodes.

Talanta·2026
Same author

Electrochemical detection of creatinine at picomolar scale with an extended linear dynamic range in human body fluids for diagnosis of kidney dysfunction.

Analytica chimica acta·2025
Same author

Comparative electrochemical study of oxidative nicarbazin determination in non-aqueous media: Differential pulse voltammetry vs. capillary electrophoresis with amperometric detection.

Talanta·2025
Same author

Novel, fast, and reliable electrochemical dsDNA biosensor based on O-terminated pristine nanocrystalline boron-doped diamond electrode for DNA interaction studies.

Bioelectrochemistry (Amsterdam, Netherlands)·2024
Same author

N-methyl mesoporphyrin IX (NMM) as electrochemical probe for detection of guanine quadruplexes.

Bioelectrochemistry (Amsterdam, Netherlands)·2023
Same author

Graphene derivatives-based electrodes for the electrochemical determination of carbamate pesticides in food products: A review.

Analytica chimica acta·2023

Related Experiment Video

Updated: May 23, 2026

Generation of Zerovalent Metal Core Nanoparticles Using n-(2-aminoethyl)-3-aminosilanetriol
08:12

Generation of Zerovalent Metal Core Nanoparticles Using n-(2-aminoethyl)-3-aminosilanetriol

Published on: February 11, 2016

Voltammetric determination of dinitronaphthalenes using a silver solid amalgam paste electrode.

Jana Tvrdikova1, Ales Danhel, Vlastimil Vyskocil

  • 1Department of Analytical Chemistry, Faculty of Science, Charles University in Prague, UNESCO Laboratory of Environmental Electrochemistry, Prague, Czech Republic.

Analytical Sciences : the International Journal of the Japan Society for Analytical Chemistry
|April 14, 2012
PubMed
Summary

A novel silver solid amalgam paste electrode (AgSA-PE) offers a stable and sensitive platform for detecting environmental pollutants. This electrode enables precise voltammetric determination of dinitronaphthalenes in aqueous-methanolic solutions.

More Related Videos

Measurement of the Potential Rates of Dissimilatory Nitrate Reduction to Ammonium Based on 14NH4+/15NH4+ Analyses via Sequential Conversion to N2O
08:05

Measurement of the Potential Rates of Dissimilatory Nitrate Reduction to Ammonium Based on 14NH4+/15NH4+ Analyses via Sequential Conversion to N2O

Published on: October 7, 2020

Template Directed Synthesis of Plasmonic Gold Nanotubes with Tunable IR Absorbance
13:37

Template Directed Synthesis of Plasmonic Gold Nanotubes with Tunable IR Absorbance

Published on: April 1, 2013

Related Experiment Videos

Last Updated: May 23, 2026

Generation of Zerovalent Metal Core Nanoparticles Using n-(2-aminoethyl)-3-aminosilanetriol
08:12

Generation of Zerovalent Metal Core Nanoparticles Using n-(2-aminoethyl)-3-aminosilanetriol

Published on: February 11, 2016

Measurement of the Potential Rates of Dissimilatory Nitrate Reduction to Ammonium Based on 14NH4+/15NH4+ Analyses via Sequential Conversion to N2O
08:05

Measurement of the Potential Rates of Dissimilatory Nitrate Reduction to Ammonium Based on 14NH4+/15NH4+ Analyses via Sequential Conversion to N2O

Published on: October 7, 2020

Template Directed Synthesis of Plasmonic Gold Nanotubes with Tunable IR Absorbance
13:37

Template Directed Synthesis of Plasmonic Gold Nanotubes with Tunable IR Absorbance

Published on: April 1, 2013

Area of Science:

  • Electrochemistry
  • Analytical Chemistry
  • Environmental Science

Background:

  • Development of novel electrochemical sensors for environmental monitoring.
  • Need for robust and easily renewable working electrodes in voltammetry.
  • Challenges in detecting trace levels of organic pollutants.

Purpose of the Study:

  • To investigate the electrochemical properties and applications of a silver solid amalgam paste electrode (AgSA-PE).
  • To develop a sensitive voltammetric method for determining environmentally significant dinitronaphthalene isomers.
  • To evaluate the AgSA-PE as a practical alternative working electrode.

Main Methods:

  • Fabrication of the silver solid amalgam paste electrode (AgSA-PE) using silver solid amalgam powder and paraffin oil.
  • Electrochemical characterization in aqueous-methanolic media across a wide pH range.
  • Development and application of differential pulse voltammetry for pollutant determination.

Main Results:

  • The AgSA-PE demonstrated a wide cathodic potential window (-1200 mV) and good mechanical stability.
  • Voltammetric methods using AgSA-PE achieved linear concentration dependences for dinitronaphthalenes from 1-100 µmol l⁻¹.
  • Sensitive detection with limits of detection around 1 µmol l⁻¹ was achieved without electrode pretreatment.

Conclusions:

  • The silver solid amalgam paste electrode (AgSA-PE) is a promising, easily prepared, and renewable electrode for electrochemical analysis.
  • AgSA-PE enables sensitive and selective determination of dinitronaphthalenes in aqueous-methanolic mixtures.
  • This sensor offers practical usability for environmental monitoring of key pollutants.