Definitions for nmr
nmr

Princeton's WordNetRate this definition:0.0 / 0 votes

1. nuclear magnetic resonance, NMR, proton magnetic resonancenoun

   resonance of protons to radiation in a magnetic field

WikipediaRate this definition:0.0 / 0 votes

1. nmr

   Nuclear magnetic resonance (NMR) is a physical phenomenon in which nuclei in a strong constant magnetic field are perturbed by a weak oscillating magnetic field (in the near field) and respond by producing an electromagnetic signal with a frequency characteristic of the magnetic field at the nucleus. This process occurs near resonance, when the oscillation frequency matches the intrinsic frequency of the nuclei, which depends on the strength of the static magnetic field, the chemical environment, and the magnetic properties of the isotope involved; in practical applications with static magnetic fields up to ca. 20 tesla, the frequency is similar to VHF and UHF television broadcasts (60–1000 MHz). NMR results from specific magnetic properties of certain atomic nuclei. Nuclear magnetic resonance spectroscopy is widely used to determine the structure of organic molecules in solution and study molecular physics and crystals as well as non-crystalline materials. NMR is also routinely used in advanced medical imaging techniques, such as in magnetic resonance imaging (MRI). The most commonly used nuclei are 1H and 13C, although isotopes of many other elements, such as 19F, can be studied by high-field NMR spectroscopy as well. In order to interact with the magnetic field in the spectrometer, the nucleus must have an intrinsic nuclear magnetic moment and angular momentum. This occurs when an isotope has a nonzero nuclear spin, meaning an odd number of protons and/or neutrons (see Isotope). Nuclides with even numbers of both have a total spin of zero and are therefore NMR-inactive. A key feature of NMR is that the resonant frequency of a particular sample substance is usually directly proportional to the strength of the applied magnetic field. It is this feature that is exploited in imaging techniques; if a sample is placed in a non-uniform magnetic field then the resonance frequencies of the sample's nuclei depend on where in the field they are located. Since the resolution of the imaging technique depends on the magnitude of the magnetic field gradient, many efforts are made to develop increased gradient field strength.

ChatGPTRate this definition:0.0 / 0 votes

1. nmr

   NMR, or Nuclear Magnetic Resonance, is a scientific technique that exploits the magnetic properties of certain atomic nuclei. It relies on the phenomenon of nuclear magnetic resonance and provides detailed information about the structure, dynamics, reaction state, and chemical environment of molecules. It is frequently used in medical imaging techniques, such as MRIs, and in scientific research, particularly in the field of organic chemistry to determine the structure of organic compounds.

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1. NMR

   What does NMR stand for? -- Explore the various meanings for the NMR acronym on the Abbreviations.com website.

Matched Categories

1. • Magnetic Resonance

How to pronounce nmr?

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How to say nmr in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of nmr in Chaldean Numerology is: 2

2. Pythagorean Numerology

   The numerical value of nmr in Pythagorean Numerology is: 9

Examples of nmr in a Sentence

1. Andre Simpson:

   We use the NMR spectrometers to look inside tiny living organisms and understand their biochemical response to their changing environment.

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References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=nmr
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/Nmr
3. ^ ChatGPT
   https://chat.openai.com