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

Tandem Mass Spectrometry01:21

Tandem Mass Spectrometry

Tandem mass spectrometry is a technique that uses multiple mass analyzers in series to obtain a higher selectivity and reduce chemical noise during analyte detection. Instruments with multiple analyzers separated by an interaction cell enable secondary fragmentation and selected study of the fragment ions.Secondary fragmentations occur in the interaction cell and can be induced by various factors. Fragmentation induced by collision with inert gases, such as N2, Ar, He, etc., is called...
Mass Spectrometry: Complex Analysis01:21

Mass Spectrometry: Complex Analysis

Mass spectrometry is an important technique for the identification of pure compounds. However, it has some limitations for the analysis of complex mixtures, often due to excessive fragmentation making the spectrum too complicated to decipher. Mass spectrometry can be combined with suitable separation methods in sequence, forming hyphenated methods, which are useful in the analysis of complex mixtures.
GC–MS is a powerful hyphenated method commonly used in forensics and environmental...
¹³C NMR: Distortionless Enhancement by Polarization Transfer (DEPT)01:20

¹³C NMR: Distortionless Enhancement by Polarization Transfer (DEPT)

When proton-coupled carbon-13 spectra are simplified by a broadband proton decoupling technique, structural information about the coupled protons is lost. Distortionless enhancement by polarization transfer (DEPT) is a technique that provides information on the number of hydrogens attached to each carbon in a molecule. While the DEPT experiment utilizes complex pulse sequences, the pulse delay and flip angle are specifically manipulated. The resulting signals have different phases depending on...
Spectroscopy of Carboxylic Acid Derivatives01:26

Spectroscopy of Carboxylic Acid Derivatives

Infrared spectroscopy is primarily used to determine the types of bonds and functional groups. In carboxylic acid derivatives, a typical carbonyl bond absorption is observed around 1650–1850 cm−1. For esters, the absorption is recorded at around 1740 cm−1, while acid halides show the absorption at about 1800 cm−1. Another acid derivative, the acid anhydrides, exhibit two carbonyl absorption around 1760 cm−1 and 1820 cm−1, arising from the symmetrical and unsymmetrical carbonyl vibration.
In the...
Atomic Absorption Spectroscopy: Atomization Methods01:25

Atomic Absorption Spectroscopy: Atomization Methods

Atomic Absorption Spectroscopy (AAS) atomizes samples through flame atomization or electrothermal atomization. Flame atomization typically involves a nebulizer and spray chamber assembly to combine the sample with a fuel–oxidant mixture, creating a fine aerosol mist that enters a burner. Typically, the fuel and oxidant are combined in an approximately stoichiometric ratio. However, for atoms that are easily oxidized, a fuel-rich mixture may be more advantageous. Only about 5% of the aerosol...

You might also read

Related Articles

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

Sort by
Same author

Molecular Stiffening by Macrocycle Clustering.

Angewandte Chemie (International ed. in English)·2025
Same author

Exploring the crystallisation of aspirin in a confined porous material using solid-state nuclear magnetic resonance.

Faraday discussions·2024
Same author

A facile approach for estimating radio-frequency field strength of low-receptivity nuclei.

Journal of magnetic resonance (San Diego, Calif. : 1997)·2023
Same author

Internal Dynamics and Modular Peripheral Binding in Stimuli-Responsive 3 : 2 Host:Guest Complexes.

Angewandte Chemie (International ed. in English)·2023
Same author

Polarization Amplification in Dynamic Nuclear Polarization Magic-Angle Spinning Solid-State Nuclear Magnetic Resonance by Solubilizing Traditional Ionic Salts.

The journal of physical chemistry letters·2023
Same author

Exploiting solid-state dynamic nuclear polarization NMR spectroscopy to establish the spatial distribution of polymorphic phases in a solid material.

Chemical science·2023
Same journal

An intrinsically stretchable nanowire-based sensing patch for wearable analysis of sweat chloride ion composition.

Chemical communications (Cambridge, England)·2026
Same journal

A sterically rigid-flexible balanced NHC-Pd precatalyst for room-temperature solvent-free C-N coupling of benzocyclic amines.

Chemical communications (Cambridge, England)·2026
Same journal

Portable fluorescent conjugated microporous polymer sensor coupled with a smartphone for on-site Fe<sup>3+</sup> detection in water.

Chemical communications (Cambridge, England)·2026
Same journal

Accelerated discovery of NO<sub>3</sub>RR single-atom catalysts <i>via</i> high-throughput DFT and machine learning.

Chemical communications (Cambridge, England)·2026
Same journal

Wafer-scale robust graphene electronics under industrial processing conditions.

Chemical communications (Cambridge, England)·2026
Same journal

Subnanoscale IrW oxide anodes: breaking immiscibility for high activity and durability in water electrolysis.

Chemical communications (Cambridge, England)·2026
See all related articles

Related Experiment Video

Updated: Jul 4, 2026

PTR-ToF-MS Coupled with an Automated Sampling System and Tailored Data Analysis for Food Studies: Bioprocess Monitoring, Screening and Nose-space Analysis
08:43

PTR-ToF-MS Coupled with an Automated Sampling System and Tailored Data Analysis for Food Studies: Bioprocess Monitoring, Screening and Nose-space Analysis

Published on: May 11, 2017

Improved 3D DOSY-TOCSY experiment for mixture analysis.

Stéphane Viel1, Stefano Caldarelli

  • 1Aix-Marseille Université, ISM2-UMR-6263, Equipe CES, Campus de Saint Jérôme, case 512, Av. Escadrille Normandie Niémen, 13397 Marseille cedex 20, France. s.viel@univ-cezanne.fr

Chemical Communications (Cambridge, England)
|June 10, 2008
PubMed
Summary
This summary is machine-generated.

Hadamard encoding significantly enhances 3D DOSY homonuclear experiments. This method reduces minimum experiment time tenfold and improves resolution, as demonstrated with 3D DOSY-TOCSY.

More Related Videos

Obtaining 3D Chemical Maps by Energy Filtered Transmission Electron Microscopy Tomography
08:15

Obtaining 3D Chemical Maps by Energy Filtered Transmission Electron Microscopy Tomography

Published on: June 9, 2018

Related Experiment Videos

Last Updated: Jul 4, 2026

PTR-ToF-MS Coupled with an Automated Sampling System and Tailored Data Analysis for Food Studies: Bioprocess Monitoring, Screening and Nose-space Analysis
08:43

PTR-ToF-MS Coupled with an Automated Sampling System and Tailored Data Analysis for Food Studies: Bioprocess Monitoring, Screening and Nose-space Analysis

Published on: May 11, 2017

Obtaining 3D Chemical Maps by Energy Filtered Transmission Electron Microscopy Tomography
08:15

Obtaining 3D Chemical Maps by Energy Filtered Transmission Electron Microscopy Tomography

Published on: June 9, 2018

Area of Science:

  • Nuclear Magnetic Resonance Spectroscopy
  • Analytical Chemistry

Background:

  • 3D DOSY (Diffusion Ordered Spectroscopy) experiments are crucial for analyzing complex molecular mixtures.
  • Current pulse sequences have limitations in terms of experiment time and resolution.

Purpose of the Study:

  • To investigate the application of Hadamard encoding for improving 3D DOSY homonuclear experiments.
  • To demonstrate the benefits of Hadamard encoding in terms of speed and resolution.

Main Methods:

  • Implementation of Hadamard encoding within 3D DOSY pulse sequences.
  • Application to a 3D DOSY-TOCSY (Total Correlation Spectroscopy) experiment for validation.

Main Results:

  • Achieved a 10-fold reduction in minimum experiment time.
  • Demonstrated significant enhancement in spectral resolution.
  • Successfully applied to 3D DOSY-TOCSY, showcasing practical utility.

Conclusions:

  • Hadamard encoding offers a substantial advancement for 3D DOSY homonuclear experiments.
  • This technique provides a powerful tool for faster and more detailed molecular analysis.