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

Atomic Nuclei: Magnetic Resonance01:05

Atomic Nuclei: Magnetic Resonance

The number of nuclear spins aligned in the lower energy state is slightly greater than those in the higher energy state. In the presence of an external magnetic field, as the spins precess at the Larmor frequency, the excess population results in a net magnetization oriented along the z axis. When a pulse or a short burst of radio waves at the Larmor frequency is applied along the x axis, the coupling of frequencies causes resonance and flips the nuclear spins of the excess population from the...
Insensitive Nuclei Enhanced by Polarization Transfer (INEPT)01:15

Insensitive Nuclei Enhanced by Polarization Transfer (INEPT)

Insensitive Nuclei Enhanced by Polarization Transfer (INEPT) is an advanced Nuclear Magnetic Resonance (NMR) technique specifically designed to detect and enhance the signals of low-abundance nuclei, such as carbon-13 and nitrogen-15, in small molecules. The fundamental principle behind INEPT is the transfer of polarization from a more abundant and highly polarizable nucleus, typically hydrogen-1, to the low-abundance nucleus of interest. This process effectively boosts the NMR signal of the...
Nuclear Magnetic Resonance (NMR): Overview01:07

Nuclear Magnetic Resonance (NMR): Overview

Nuclear magnetic resonance (NMR) is a phenomenon exhibited by certain nuclei that can absorb characteristic radio frequency radiation under certain conditions. NMR has been extensively applied in molecular spectroscopy and medical diagnostic imaging. In both these applications, the molecule or subject under study is placed in a magnetic field and irradiated with radio frequency energy.
NMR spectroscopy generates a spectrum where the characteristic absorption frequencies of the sample are...
Double Resonance Techniques: Overview01:12

Double Resonance Techniques: Overview

Double resonance techniques in Nuclear Magnetic Resonance (NMR) spectroscopy involve the simultaneous application of two different frequencies or radiofrequency pulses to manipulate and observe two distinct nuclear spins. One important application of double resonance is spin decoupling, which selectively suppresses coupling with one type of nucleus while observing the NMR signal from another nucleus, simplifying the spectrum and enhancing resolution.
Spin decoupling is usually achieved by...
Atomic Nuclei: Nuclear Spin State Population Distribution01:14

Atomic Nuclei: Nuclear Spin State Population Distribution

Near absolute zero temperatures, in the presence of a magnetic field, the majority of nuclei prefer the lower energy spin-up state to the higher energy spin-down state. As temperatures increase, the energy from thermal collisions distributes the spins more equally between the two states. The Boltzmann distribution equation gives the ratio of the number of spins predicted in the spin −½ (N−) and spin +½ (N+) states.
NMR Spectroscopy Of Amines01:19

NMR Spectroscopy Of Amines

In proton NMR spectroscopy, primary amines and secondary amines showcase their N–H protons as a broad signal in the chemical shift range between δ 0.5 and 5 ppm. The exact position in this range depends on several factors, including sample concentration, hydrogen bonding, and the type of solvent used. Since amine protons undergo fast proton exchange in solution, the protons are labile and therefore do not participate in any splitting with adjacent protons. Thus, the observed peak is broad and...

You might also read

Related Articles

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

Sort by
Same author

Visual phenomena and anatomo-electro-clinical correlations in occipital lobe seizures.

Revue neurologique·2022
Same author

Cognitive performance and lifetime cannabis use in patients with first-episode schizophrenia spectrum disorder.

Cognitive neuropsychiatry·2021
Same author

Utility of rotational thromboelastometry in total hip replacement revision surgery (case-control study).

Medicine·2020
Same author

Pitfalls in the diagnosis of new-onset frontal lobe seizures.

Epilepsy & behavior case reports·2015
Same author

The feasibility of home polysomnographic recordings prescribed for sleep-related neurological disorders: a prospective observational study.

Neurophysiologie clinique = Clinical neurophysiology·2014
Same author

[Total-endoscopic Thyroid Resection in ABBA-Technique: Comments on the Integration of Intraoperative Neuromonitoring].

Zentralblatt fur Chirurgie·2013

Related Experiment Video

Updated: Jul 11, 2026

High-Sensitivity Nuclear Magnetic Resonance at Giga-Pascal Pressures: A New Tool for Probing Electronic and Chemical Properties of Condensed Matter under Extreme Conditions
08:42

High-Sensitivity Nuclear Magnetic Resonance at Giga-Pascal Pressures: A New Tool for Probing Electronic and Chemical Properties of Condensed Matter under Extreme Conditions

Published on: October 10, 2014

Nuclear magnetic resonance at high pressure.

J Jonas

    Science (New York, N.Y.)
    |June 11, 1982
    PubMed
    Summary

    High-pressure nuclear magnetic resonance (NMR) relaxation measurements reveal liquid behavior. This technique offers insights into molecular liquids, water, supercritical fluids, and chemical processes.

    Area of Science:

    • Physical Chemistry
    • Chemical Physics
    • Materials Science

    Background:

    • Nuclear magnetic resonance (NMR) relaxation measurements offer insights into molecular dynamics.
    • High pressure is a critical variable for understanding liquid behavior and phase transitions.
    • Combining NMR relaxation with high pressure provides unique data on microscopic liquid properties.

    Purpose of the Study:

    • To present the principles of high-pressure NMR relaxation measurements.
    • To illustrate the technique's utility with examples from diverse fluid systems.
    • To highlight future applications in advanced spectroscopy and catalysis.

    Main Methods:

    • Nuclear magnetic resonance (NMR) relaxation measurements.
    • Application of high pressure to liquid samples.

    More Related Videos

    High-Temperature and High-Pressure In situ Magic Angle Spinning Nuclear Magnetic Resonance Spectroscopy
    08:55

    High-Temperature and High-Pressure In situ Magic Angle Spinning Nuclear Magnetic Resonance Spectroscopy

    Published on: October 9, 2020

    High-Pressure NMR Experiments for Detecting Protein Low-Lying Conformational States
    04:37

    High-Pressure NMR Experiments for Detecting Protein Low-Lying Conformational States

    Published on: June 29, 2021

    Related Experiment Videos

    Last Updated: Jul 11, 2026

    High-Sensitivity Nuclear Magnetic Resonance at Giga-Pascal Pressures: A New Tool for Probing Electronic and Chemical Properties of Condensed Matter under Extreme Conditions
    08:42

    High-Sensitivity Nuclear Magnetic Resonance at Giga-Pascal Pressures: A New Tool for Probing Electronic and Chemical Properties of Condensed Matter under Extreme Conditions

    Published on: October 10, 2014

    High-Temperature and High-Pressure In situ Magic Angle Spinning Nuclear Magnetic Resonance Spectroscopy
    08:55

    High-Temperature and High-Pressure In situ Magic Angle Spinning Nuclear Magnetic Resonance Spectroscopy

    Published on: October 9, 2020

    High-Pressure NMR Experiments for Detecting Protein Low-Lying Conformational States
    04:37

    High-Pressure NMR Experiments for Detecting Protein Low-Lying Conformational States

    Published on: June 29, 2021

  • Spectroscopic analysis of molecular liquids, water, and supercritical fluids.

    • Main Results:

    • Demonstrated the capability of high-pressure NMR relaxation to probe microscopic liquid behavior.
    • Provided specific examples of its application to molecular liquids, water, and supercritical dense fluids.
    • Showcased the potential for high-resolution NMR at high pressure for studying chemical exchange and catalysis.

    Conclusions:

    • High-pressure NMR relaxation is a powerful tool for investigating liquid systems.
    • The technique has broad applicability, from fundamental fluid studies to chemical processes.
    • Future developments promise enhanced capabilities for high-resolution NMR under pressure.