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

Molecular and Ionic Solids02:54

Molecular and Ionic Solids

20.0K
Crystalline solids are divided into four types: molecular, ionic, metallic, and covalent network based on the type of constituent units and their interparticle interactions.
Molecular Solids
Molecular crystalline solids, such as ice, sucrose (table sugar), and iodine, are solids that are composed of neutral molecules as their constituent units. These molecules are held together by weak intermolecular forces such as London dispersion forces, dipole-dipole interactions, or hydrogen bonds, which...
20.0K
What is an Electrochemical Gradient?01:26

What is an Electrochemical Gradient?

127.7K
Adenosine triphosphate, or ATP, is considered the primary energy source in cells. However, energy can also be stored in the electrochemical gradient of an ion across the plasma membrane, which is determined by two factors: its chemical and electrical gradients.
The chemical gradient relies on differences in the abundance of a substance on the outside versus the inside of a cell and flows from areas of high to low ion concentration. In contrast, the electrical gradient revolves around an...
127.7K
Ionic Radii03:10

Ionic Radii

33.5K
Ionic radius is the measure used to describe the size of an ion. A cation always has fewer electrons and the same number of protons as the parent atom; it is smaller than the atom from which it is derived. For example, the covalent radius of an aluminum atom (1s22s22p63s23p1) is 118 pm, whereas the ionic radius of an Al3+ (1s22s22p6) is 68 pm. As electrons are removed from the outer valence shell, the remaining core electrons occupying smaller shells experience a greater effective nuclear...
33.5K
Ionic Bonds00:42

Ionic Bonds

130.3K
Overview
When atoms gain or lose electrons to achieve a more stable electron configuration they form ions. Ionic bonds are electrostatic attractions between ions with opposite charges. Ionic compounds are rigid and brittle when solid and may dissociate into their constituent ions in water. Covalent compounds, by contrast, remain intact unless a chemical reaction breaks them.
Opposing Charges Hold Ions Together in Ionic Compounds
Ionic bonds are reversible electrostatic interactions between ions...
130.3K
Volatilization01:10

Volatilization

6.2K
Volatilization gravimetry is an analytical technique that measures the mass lost due to the volatilization of the substance. This technique is used to estimate the amount of volatile material in a sample. To perform this method, heat a known amount of the sample to a high temperature in a crucible or other suitable vessel. The volatile substance in the sample evaporates, and the vapor is completely expelled from the crucible either by heating the sample or bubbling a stream of inert gas through...
6.2K
Solubility of Ionic Compounds02:55

Solubility of Ionic Compounds

68.1K
Solubility is the measure of the maximum amount of solute that can be dissolved in a given quantity of solvent at a given temperature and pressure. Solubility is usually measured in molarity (M) or moles per liter (mol/L). A compound is termed soluble if it dissolves in water.
68.1K

You might also read

Related Articles

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

Sort by
Same author

A Label-Free Electrochemical Genosensor for the Rapid Detection of <i>Campylobacter jejuni</i>, <i>C. coli</i>, <i>C. lari</i> and <i>C. upsaliensis</i>.

Micromachines·2026
Same author

Macroscopic and microscopic electron transfer kinetics of HOPG and graphite intercalated compound investigated by cyclic voltammetry and SECM.

Journal of microscopy·2025
Same author

Gas sensor for 4-ethylguaiacol detection based on tyrosinase enzymatic activity in a deep eutectic solvent.

Mikrochimica acta·2025
Same author

Micro-Supercapacitors for Self-Powered Biosensors.

Small science·2025
Same author

PySpectro: A modular 3D printed, machine learning assisted optical device for recognition and quantification of samples.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy·2025
Same author

Kinetic considerations on the antioxidant properties of humic substances: An electrochemical approach.

Talanta·2025

Related Experiment Video

Updated: Jan 29, 2026

Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature
11:04

Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature

Published on: December 20, 2016

13.4K

Volatile aldehydes sensing in headspace using a room temperature ionic liquid-modified electrochemical microprobe.

Rosanna Toniolo1, Nicolò Dossi1, Renzo Bortolomeazzi1

  • 1Department of Agrifood, Environmental and Animal Sciences,University of Udine, via Cotonificio 108, I-33100 Udine, Italy.

Talanta
|February 18, 2019
PubMed
Summary
This summary is machine-generated.

An electrochemical microprobe using 1-butyl-3-methylimidazolium hydroxide ([BMIM][OH]) effectively senses volatile aldehydes. This method is suitable for monitoring lipid oxidation in food products.

Keywords:
1-butyl-3-methylimidazolium hydroxideGas sensorPlatinum microelectrodesRoom temperature ionic liquidsSunflower oilVolatile aldehydes

More Related Videos

Profiling Volatile Compounds in Blackcurrant Fruit using Headspace Solid-Phase Microextraction Coupled to Gas Chromatography-Mass Spectrometry
05:29

Profiling Volatile Compounds in Blackcurrant Fruit using Headspace Solid-Phase Microextraction Coupled to Gas Chromatography-Mass Spectrometry

Published on: June 9, 2021

4.4K
Rapid Collection of Floral Fragrance Volatiles using a Headspace Volatile Collection Technique for GC-MS Thermal Desorption Sampling
05:22

Rapid Collection of Floral Fragrance Volatiles using a Headspace Volatile Collection Technique for GC-MS Thermal Desorption Sampling

Published on: December 10, 2019

7.6K

Related Experiment Videos

Last Updated: Jan 29, 2026

Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature
11:04

Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature

Published on: December 20, 2016

13.4K
Profiling Volatile Compounds in Blackcurrant Fruit using Headspace Solid-Phase Microextraction Coupled to Gas Chromatography-Mass Spectrometry
05:29

Profiling Volatile Compounds in Blackcurrant Fruit using Headspace Solid-Phase Microextraction Coupled to Gas Chromatography-Mass Spectrometry

Published on: June 9, 2021

4.4K
Rapid Collection of Floral Fragrance Volatiles using a Headspace Volatile Collection Technique for GC-MS Thermal Desorption Sampling
05:22

Rapid Collection of Floral Fragrance Volatiles using a Headspace Volatile Collection Technique for GC-MS Thermal Desorption Sampling

Published on: December 10, 2019

7.6K

Area of Science:

  • Electrochemistry
  • Analytical Chemistry
  • Materials Science

Background:

  • Volatile aldehydes are key indicators of lipid oxidation in food.
  • Sensing these aldehydes requires sensitive and reliable analytical methods.
  • Ionic liquids offer unique properties as electrolytes for electrochemical sensing.

Purpose of the Study:

  • To investigate the electrochemical behavior of propionaldehyde and hexanaldehyde in different ionic liquids.
  • To develop an electrochemical microprobe (EMP) for sensing volatile aldehydes in gaseous phases.
  • To assess the practical applicability of the developed EMP for food quality monitoring.

Main Methods:

  • Cyclic voltammetry and chronoamperometry were employed to study aldehyde oxidation at a platinum microelectrode.
  • An EMP was constructed using 1-butyl-3-methylimidazolium hydroxide ([BMIM][OH]) as the electrolyte.
  • The EMP's response was evaluated in the headspace of liquid aldehydes and in spiked lipid matrices (squalene and sunflower oil).

Main Results:

  • Aldehyde oxidation was observed only in [BMIM][OH], enabling electrochemical sensing.
  • The EMP demonstrated voltammetric and amperometric responses dependent on aldehyde vapor pressure and temperature.
  • Linear calibration plots (R² > 0.991) were obtained for hexanaldehyde detection in squalene over a range of 3-300 ppm.
  • Excellent reproducibility (within 5%) and low detection limits (< 1.7 ppm) were achieved.
  • The EMP was successfully applied to monitor volatile aldehydes in sunflower oil during an induced oxidative test.

Conclusions:

  • The [BMIM][OH]-based EMP is a promising tool for sensitive and selective detection of volatile aldehydes.
  • The developed method is suitable for real-time monitoring of lipid oxidation processes in food products.
  • This electrochemical sensing approach offers a viable alternative for assessing food quality and stability.