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

Extraction: Advanced Methods00:56

Extraction: Advanced Methods

742
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...
742
Ion-Exchange Chromatography01:09

Ion-Exchange Chromatography

1.2K
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...
1.2K
Analyte Adsorption and Distribution01:09

Analyte Adsorption and Distribution

1.4K
In certain chromatographic separations, solutes transfer between the mobile phase and the stationary phase via sorption, which typically refers to the process of adsorption. For many chromatographic systems, the sorption process often depends on the polarity of the compounds—an expression of the overall dipole moment within the molecule. During the separation process, there is competition between the solute and solvent for adsorption to the stationary phase. Highly polar compounds and...
1.4K
Qualitative Analysis03:46

Qualitative Analysis

23.1K
For solutions containing mixtures of different cations, the identity of each cation can be determined by qualitative analysis. This technique involves a series of selective precipitations with different chemical reagents, each reaction producing a characteristic precipitate for a specific group of cations. Metal ions within a group are further separated by varying the pH, heating the mixture to redissolve a precipitate, or adding other reagents to form complex ions.
For instance, group IV...
23.1K
Basicity of Heterocyclic Aromatic Amines01:25

Basicity of Heterocyclic Aromatic Amines

6.5K
Heterocyclic amines, where the N atom is a part of an alicyclic system, are similar in basicity to alkylamines. Interestingly, the heterocyclic amine having a nitrogen atom as part of an aromatic ring has much less basicity than its corresponding alicyclic counterpart. For this reason, as presented in Figure 1, piperidine (pKb = 2.8) is significantly more basic than pyridine (pKb = 8.8).
6.5K
Ion Exchange01:17

Ion Exchange

781
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...
781

You might also read

Related Articles

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

Sort by
Same author

Microliter-Scale Stereolithography Enables High-Resolution 3D Printing of Functional Extraction Sorbents.

Analytical chemistry·2026
Same author

Fluorinated Polymeric Ionic Liquids Enable Selective Preconcentration of Volatile Perfluoroalkyl Substances.

Analytical chemistry·2026
Same author

Nanodomain Formation and Temperature-Dependent Diffusion in Deep Eutectic Solvents Revealed by Single-Molecule Tracking.

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

Ion-Specific Precipitation of Extractants Enables Rare-Earth Separation and Wastewater Remediation from Solvent Extraction of Critical Elements.

Environmental science & technology·2026
Same author

Complex Olefin Separations by Coordinated Silver(I) Containing Ionic Liquid Stationary Phases Using Comprehensive Two-Dimensional Gas Chromatography.

Analytical chemistry·2025
Same author

Single-Tube Capture, Concentration, and Genomic Extraction of a Human Norovirus Surrogate Using Magnetic Ionic Liquids.

Analytical chemistry·2025

Related Experiment Video

Updated: Nov 8, 2025

Detection of Regulated Ergot Alkaloids in Food Matrices by Liquid Chromatography-Trapped Ion Mobility Spectrometry-Time-of-Flight Mass Spectrometry
08:56

Detection of Regulated Ergot Alkaloids in Food Matrices by Liquid Chromatography-Trapped Ion Mobility Spectrometry-Time-of-Flight Mass Spectrometry

Published on: November 22, 2024

958

Polymeric metal-containing ionic liquid sorbent coating for the determination of amines using headspace solid-phase

Kateryna Yavir1, Philip Eor2, Adam Kloskowski1

  • 1Department of Physical Chemistry, Faculty of Chemistry, Gdansk University of Technology, Gdansk, Poland.

Journal of Separation Science
|April 23, 2021
PubMed
Summary

New polymeric ionic liquid sorbent coatings with nickel centers effectively determine volatile and semivolatile amines in water. The PIL-2 coating demonstrated superior performance in headspace solid-phase microextraction, achieving high enrichment factors for accurate analysis.

Keywords:
aminesnickelpolymeric ionic liquidssolid-phase microextraction

More Related Videos

Quantification of Metal Leaching in Immobilized Metal Affinity Chromatography
05:35

Quantification of Metal Leaching in Immobilized Metal Affinity Chromatography

Published on: January 17, 2020

7.6K
Preparation of Hydrophobic Metal-Organic Frameworks via Plasma Enhanced Chemical Vapor Deposition of Perfluoroalkanes for the Removal of Ammonia
12:05

Preparation of Hydrophobic Metal-Organic Frameworks via Plasma Enhanced Chemical Vapor Deposition of Perfluoroalkanes for the Removal of Ammonia

Published on: October 10, 2013

15.8K

Related Experiment Videos

Last Updated: Nov 8, 2025

Detection of Regulated Ergot Alkaloids in Food Matrices by Liquid Chromatography-Trapped Ion Mobility Spectrometry-Time-of-Flight Mass Spectrometry
08:56

Detection of Regulated Ergot Alkaloids in Food Matrices by Liquid Chromatography-Trapped Ion Mobility Spectrometry-Time-of-Flight Mass Spectrometry

Published on: November 22, 2024

958
Quantification of Metal Leaching in Immobilized Metal Affinity Chromatography
05:35

Quantification of Metal Leaching in Immobilized Metal Affinity Chromatography

Published on: January 17, 2020

7.6K
Preparation of Hydrophobic Metal-Organic Frameworks via Plasma Enhanced Chemical Vapor Deposition of Perfluoroalkanes for the Removal of Ammonia
12:05

Preparation of Hydrophobic Metal-Organic Frameworks via Plasma Enhanced Chemical Vapor Deposition of Perfluoroalkanes for the Removal of Ammonia

Published on: October 10, 2013

15.8K

Area of Science:

  • Analytical Chemistry
  • Materials Science

Background:

  • Volatile and semivolatile amines are significant environmental contaminants.
  • Accurate determination of amines in water samples is crucial for environmental monitoring.
  • Existing analytical methods may require improved sensitivity and efficiency.

Purpose of the Study:

  • To design, synthesize, and evaluate novel polymeric ionic liquid (PIL) sorbent coatings for amine determination.
  • To investigate the impact of nickel metal centers and cross-linkers on sorbent performance.
  • To compare the efficacy of developed PIL coatings with commercial sorbent materials.

Main Methods:

  • Synthesis of three distinct PIL sorbent coatings using ionic liquid monomers and a cross-linker.
  • Preparation of coatings incorporating a nickel metal center ([Ni2+(VIM)4]2[NTf2-]) and a non-metal PIL ([HVIM+][NTf2-]).
  • Application of headspace solid-phase microextraction coupled with gas chromatography-mass spectrometry (HS-SPME-GC-MS) for amine analysis.

Main Results:

  • The PIL-2 coating, containing the nickel-centered monomer and cross-linker, exhibited the highest enrichment factors (5,500–160,000+).
  • HS-SPME-GC-MS method demonstrated high sensitivity and effectiveness for analyzing amines in real water samples (tap and lake water).
  • Relative recovery values for PIL-1 and PIL-2 coatings in real samples ranged from 79.2% to 122.7%.

Conclusions:

  • Polymeric ionic liquid sorbent coatings featuring nickel metal centers offer a promising approach for sensitive amine determination.
  • The PIL-2 coating provides superior analytical performance compared to other developed PILs and commercial sorbents.
  • The developed method is suitable for the reliable analysis of volatile and semivolatile amines in environmental water samples.