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

Ion-Exchange Chromatography01:09

Ion-Exchange Chromatography

548
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...
548
Chromatography: Introduction01:10

Chromatography: Introduction

4.4K
Chromatography is a technique used to separate compounds based on differences of partitioning between two phases, the stationary phase and the mobile phase.
The phase in which the compounds linger or on which the compounds adsorb is called the stationary phase, whereas the mobile phase is the solvent that carries the solutes to be analyzed. In traditional column chromatography, the mixture flows through the stationary phase, and the compounds partition between the stationary and mobile phases...
4.4K
Ion Exchange01:17

Ion Exchange

596
Ion exchange chromatography separates charged molecules from a solution by reversibly exchanging them with mobile, or 'active', ions associated with the oppositely charged stationary phase. This method can be used to separate ions, soften and deionize water, and purify solutions. The polymers comprising the ion-exchange column are high-molecular-weight and chemically stable polymers, crosslinked to be porous and essentially insoluble. They are also functionalized with either acidic or...
596
Interfacial Electrochemical Methods: Overview01:06

Interfacial Electrochemical Methods: Overview

256
Interfacial electrochemical methods focus on the phenomena occurring at the boundary between an electrode and a solution, as opposed to bulk methods that concentrate on the solution's overall properties. These interfacial methods are classified as either static or dynamic based on the presence of a nonzero current in the electrochemical cell and the consistency of analyte concentrations. Static methods, such as potentiometry, measure the cell's potential without any significant current...
256
High-Performance Liquid Chromatography: Introduction01:11

High-Performance Liquid Chromatography: Introduction

2.1K
High-performance liquid chromatography(HPLC), formerly referred to as High-pressure liquid chromatography, is a powerful technique used to separate, identify, and quantify components in complex mixtures. The term "high pressure" refers to using high pressure to push the liquid mobile phase through the tightly packed columns.
In HPLC, two phases play a critical role in the separation process:
2.1K
High-Performance Liquid Chromatography: Elution Process01:05

High-Performance Liquid Chromatography: Elution Process

507
In High-Performance Liquid Chromatography (HPLC), the elution process is critical to the separation of analytes and the quality of chromatographic results. Elution describes how compounds move through the column and separate based on their interactions with the mobile and stationary phases. This process determines the resolution, peak shape, and retention times in the chromatogram, which are essential for identifying and quantifying components in complex mixtures. Understanding the elution...
507

You might also read

Related Articles

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

Sort by
Same author

Trivalent Rare Earth Adsorption at Phosphonic Acid Monolayers.

Chemphyschem : a European journal of chemical physics and physical chemistry·2025
Same author

Direct observation of carbon dioxide adsorption and binding at the air/aqueous interface.

PNAS nexus·2025
Same author

Carbon Dioxide Capture by Niobium Polyoxometalate Fragmentation.

Journal of the American Chemical Society·2024
Same author

A simple method for floating graphene oxide films facilitates nanoscale investigations of ion and water adsorption.

RSC advances·2024
Same author

Monovalent ion-graphene oxide interactions are controlled by carboxylic acid groups: Sum frequency generation spectroscopy studies.

The Journal of chemical physics·2024
Same author

Ion and water adsorption to graphene and graphene oxide surfaces.

Nanoscale·2023
Same journal

Immobilization of Ytterbium via Polyphenol Chemistry on Implant Materials for Enhanced Cytocompatibility and Antibacterial Properties.

Langmuir : the ACS journal of surfaces and colloids·2026
Same journal

Electrochemical Oxidation Strategy for Integrated CO<sub>2</sub> Capture and Conversion.

Langmuir : the ACS journal of surfaces and colloids·2026
Same journal

Probing Molecular Structural Changes of Buried Interfaces between Polyethylene and Nylon in Polymer Thin Films after Stretching.

Langmuir : the ACS journal of surfaces and colloids·2026
Same journal

Charge Dependence of Local Hydration Dynamics in Poly(Acrylic Acid) Solutions.

Langmuir : the ACS journal of surfaces and colloids·2026
Same journal

Amphiphilic Lubricants Linked by Hydrogen Bonds Achieve Superlubricity and Enhance Water/Oil Tribological Properties.

Langmuir : the ACS journal of surfaces and colloids·2026
Same journal

Spin Dewetting of Ultrathin Polymer Films.

Langmuir : the ACS journal of surfaces and colloids·2026
See all related articles

Related Experiment Video

Updated: Jul 11, 2025

Cell Co-culture Patterning Using Aqueous Two-phase Systems
10:11

Cell Co-culture Patterning Using Aqueous Two-phase Systems

Published on: March 26, 2013

18.5K

Aqueous Interfaces in Chemical Separations.

Ahmet Uysal1

  • 1Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States.

Langmuir : the ACS Journal of Surfaces and Colloids
|November 2, 2023
PubMed
Summary
This summary is machine-generated.

Understanding molecular mechanisms at interfaces is key for critical material separation. New research uses advanced techniques to reveal ion behavior, improving processes like liquid-liquid extraction (LLE).

More Related Videos

In vitro Digestion of Emulsions in a Single Droplet via Multi Subphase Exchange of Simulated Gastrointestinal Fluids
10:20

In vitro Digestion of Emulsions in a Single Droplet via Multi Subphase Exchange of Simulated Gastrointestinal Fluids

Published on: November 18, 2022

2.6K
On-chip Isotachophoresis for Separation of Ions and Purification of Nucleic Acids
10:32

On-chip Isotachophoresis for Separation of Ions and Purification of Nucleic Acids

Published on: March 2, 2012

24.6K

Related Experiment Videos

Last Updated: Jul 11, 2025

Cell Co-culture Patterning Using Aqueous Two-phase Systems
10:11

Cell Co-culture Patterning Using Aqueous Two-phase Systems

Published on: March 26, 2013

18.5K
In vitro Digestion of Emulsions in a Single Droplet via Multi Subphase Exchange of Simulated Gastrointestinal Fluids
10:20

In vitro Digestion of Emulsions in a Single Droplet via Multi Subphase Exchange of Simulated Gastrointestinal Fluids

Published on: November 18, 2022

2.6K
On-chip Isotachophoresis for Separation of Ions and Purification of Nucleic Acids
10:32

On-chip Isotachophoresis for Separation of Ions and Purification of Nucleic Acids

Published on: March 2, 2012

24.6K

Area of Science:

  • Surface and Interface Science
  • Separation Science
  • Materials Chemistry

Background:

  • Chemical separations are crucial for refining critical materials like platinum group metals, rare earths, and actinides.
  • Existing separation technologies (LLE, sorbents, membranes) rely on ion adsorption/transfer at interfaces, but molecular mechanisms are poorly understood.
  • Limited understanding hinders meeting demand for critical materials in advanced technologies.

Purpose of the Study:

  • To discuss recent interfacial studies on amphiphile-ion interactions in metal ion separations.
  • To elucidate molecular-scale mechanisms governing ion adsorption and transport at aqueous interfaces.
  • To highlight the relevance of interfacial phenomena beyond separations.

Main Methods:

  • Review of recent surface-specific experimental and computational techniques.
  • Analysis of model interfacial systems (amphiphilic molecules at solid/water, air/water, oil/water interfaces).
  • Investigation of solute and solvent behavior at aqueous interfaces, including complex ions.

Main Results:

  • Recent studies provide direct, molecular-scale insights into amphiphile-ion interactions at interfaces.
  • Understanding ion behavior in concentrated solutions is crucial for liquid-liquid extraction (LLE) of critical materials.
  • Interfacial phenomena in separations are relevant to energy storage, geochemistry, and atmospheric chemistry.

Conclusions:

  • Advancements in surface-specific techniques bridge the knowledge gap in interfacial separation mechanisms.
  • Molecular-level understanding facilitates the development of next-generation separation systems.
  • Model interfacial systems offer broad implications for diverse scientific fields beyond chemical separations.