proton resonance

proton resonance

[′prō‚tän ′rez·ən·əns]
(spectroscopy)
A phenomenon in which protons absorb energy from an alternating magnetic field at certain characteristic frequencies when they are also subjected to a static magnetic field; this phenomenon is used in nuclear magnetic resonance quantitative analysis technique.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
3): two of them interpret the mass as a proton resonance and two others as electron resonances.
Efficient decoupling over the entire band of proton resonance frequencies is an important factor in determining the resolution and sensitivity in [sup.13]C spectroscopy [3, 4].
The proton resonance at [delta] 1.04 ppm and 3.49 ppm were attributed to--Si--C[H.sub.2]C[[H.bar].sub.2][C.sub.8][F.sub.17] and--Si--C[H.sub.2]C[[H.bar].sub.2][C.sub.8][F.sub.17], respectively.
It incorporates a 1.4 T (60 MHz proton resonance) rare-earth permanent magnet with enhanced homogeneity, providing spectral resolution and generating routine spectra in sec.
Available at 500 and 600 MHz proton resonance frequencies, the AVANCE ICE has four RF channels, as well as a CryoProbe with its supporting units.
For [sup.1]H proton resonance, the result (26) is adjusted empirically in our development for the experimentally different g factors of the proton and electron, respectively 5.5857 and 2.002.
The 'H NMR (400 MHz) spectra of the starting brominated copolymer and modified final copolymers in [CDCl.sub.3] show the disappearance of the bromomethyl proton resonance of [-C.sub.6] [H.sub.5] ??
The single peaks at [[delta].sub.H] = 10.88 and 10.68 both are proton resonance peaks of N-H of TTAD; the multiple peaks at [[delta].sub.H] = 7.54-7.97 are proton resonance peaks of the benzene ring of benzoyl hydrazine.
In that way, every mass is interpreted as a proton resonance state and expressed in continued fraction form.
The single peak at dH=10.29 and 9.84 are proton resonance peak of N-H of NA(A), the multiple peaks at dH=7.47-7.88 are proton resonance peaks of benzene, the triplet peaks at dH=2.17-2.20 are CH2 which is near amide proton resonance peak, the multiple peaks at dH=1.32-1.58 are other CH2 proton resonance peaks.
Particle masses are interpreted as proton resonance states and expressed in continued fraction form.