Related Experiment Video

Updated: Jun 28, 2026

Development and Validation of Chromium Getters for Solid Oxide Fuel Cell Power Systems
12:30

Development and Validation of Chromium Getters for Solid Oxide Fuel Cell Power Systems

Published on: May 26, 2019

RETRACTED: Coated graphite-epoxy ion-selective electrode for the determination of chromium(III) in oxalic medium

S Khalil, A A Wassel, F F Belal

    Talanta
    |October 31, 2008
    PubMed

    More Related Videos

    Quantification of Metal Leaching in Immobilized Metal Affinity Chromatography05:35

    Quantification of Metal Leaching in Immobilized Metal Affinity Chromatography

    Published on: January 17, 2020

    Dynamic Electrochemical Measurement of Chloride Ions07:32

    Dynamic Electrochemical Measurement of Chloride Ions

    Published on: February 5, 2016

    Related Concept Videos

    Ion-Exchange Chromatography01:09

    Ion-Exchange Chromatography

    Ion-exchange chromatography, or IEC, is a technique for separating ions based on their affinity for the stationary phase. The stationary phase is a cross-linked polymer resin with covalently attached ionic functional groups. The functional groups can be either positively charged (cation exchangers) or negatively charged (anion exchangers). A cation exchanger consists of a polymeric anion and active cations, while an anion exchanger is a polymeric cation with active anions. The choice of...
    Electrodeposition01:08

    Electrodeposition

    Electrodeposition is a technique used to separate an analyte from interferents by electrochemical processes. Here, the analyte is a metal ion that can be deposited on an electrode immersed in the sample solution. The electrochemical setup consists of an anode and a cathode. When an electric current is applied to the setup, oxidation occurs at the anode. At the cathode, which consists of a large metal surface, metal ions undergo reduction and deposit onto the surface.
    Electrodeposition can...
    Extraction: Advanced Methods00:56

    Extraction: Advanced Methods

    Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is formed in...
    Electrogravimetric Analysis: Overview01:30

    Electrogravimetric Analysis: Overview

    Electrogravimetric analysis measures the weight of an analyte deposited electrolytically onto a suitable working electrode. This method involves applying a potential to a pre-weighed electrode submerged in a solution, which results in the desired substance being deposited through reduction at the cathode or oxidation at the anode. The electrode's weight is recorded after deposition, and the difference in weight gives the analyte's weight in the solution.
    To test the completeness of the...
    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...
    Redox Titration: Other Oxidizing and Reducing Agents01:26

    Redox Titration: Other Oxidizing and Reducing Agents

    Besides iodine, other oxidizing or reducing agents can serve as titrants in redox titrations. Common oxidizing titrants include KMnO4, cerium(IV), and K2Cr2O7. The choice of oxidizing titrants depends on factors like stability, cost, analyte strength, and reaction rate between the analyte and titrant. KMnO4 is a strong oxidizing titrant that reduces from Mn(VII) to Mn(II) in a highly acidic solution, simultaneously oxidizing the analyte to a higher oxidation state. In this case, KMnO4 acts as a...