PatentDOI
Adiabatic pulses for wideband inversion and broadband decoupling
TLDR
In this article, an inversion pulse for wideband application is obtained from a simple nonlinear amplitude modulation wherein the amplitude is modulated in accord with A(t)=A 0 {1-| sin βt| n } and the entire pulse is frequency modulated such that the phase varies as φ(t) =φ 0 + 1/2 kt 2About:
This article is published in Journal of Magnetic Resonance, Series A.The article was published on 1996-07-26. It has received 538 citations till now. The article focuses on the topics: Amplitude modulation & Amplitude.read more
Citations
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Journal ArticleDOI
Online LC-NMR – From an expensive toy to a powerful tool in polymer analysis
TL;DR: In this article, the authors present the latest results on the coupling of NMR with SEC, HPLC, 2D-LC and field-flow fractionation (FFF) for the analysis of oligomers, copolymers and polymer blends.
Journal ArticleDOI
Optimizing dissolution dynamic nuclear polarization
Aurélien Bornet,Sami Jannin +1 more
TL;DR: A modified d-DNP recipe is introduced that can be summed up as follows: using broad line polarizing agents to efficiently polarize 1H spins, and transferring hyperpolarized solution through a magnetic tunnel.
Journal ArticleDOI
Theoretical and experimental evaluation of broadband decoupling techniques for in vivo nuclear magnetic resonance spectroscopy
TL;DR: In this article, a theoretical and experimental evaluation of existing broadband decoupling methods with respect to their utility for in vivo 1H-13C NMR spectroscopy is presented.
Book ChapterDOI
Recent Advances in Solid-State NMR of Alkaline Earth Elements
TL;DR: In this article, the authors discuss the development and implementation of signal enhancement techniques for quadrupolar nuclei, progress in methods for obtaining wideline and ultra-wideline NMR spectra of solids, together with the widespread use of computational techniques, have all contributed immensely to the accelerated growth of solid-state NMR of alkaline earth nuclei and their extension into biology and material science.
Journal ArticleDOI
Manipulation of nuclear spin Hamiltonians by rf-field modulations and its applications to observation of powder patterns under magic-angle spinning
Yoshitaka Ishii,Takehiko Terao +1 more
TL;DR: A theoretical approach to design frequency-, phase-, and amplitude-modulated radio frequency (RF) fields for realizing Hamiltonian manipulations in nuclear magnetic resonance (NMR) is presented in this article.
References
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PatentDOI
Methods of, and apparatus for, proton decoupling in nuclear magnetic resonance spectroscopy
TL;DR: In this paper, a radio-frequency pulse is tuned to the frequency of the nuclear species, such as 1 H, to be decoupled or saturated and has a bandwidth adjusted to correspond to the entire chemical shift spectrum, minimizing the amount of radiofrequency power transmitted into a volume of the irradiated sample.
Patent
RF pulse cascade for the generation of NMR spectra
TL;DR: In this article, a method for generating a spectrum of NMR signals with rectangular characteristic in the frequency space by radiating a sequence of RF pulses onto a sample in the homogeneous magnetic field is presented.
PatentDOI
Method and apparatus for broadband decoupling in nuclear magnetic resonance with chirp pulses
Riqiang Fu,Geoffrey Bodenhausen +1 more
TL;DR: In this article, the authors proposed a method for broadband decoupling in nuclear magnetic resonance with chirp and other RF pulses, where the sample is placed in a static field, and a first cycle of chirps pulses are generated, followed by a second cycle of pulses generated by a supercycle of the first and second cycles.
Patent
Method for exciting transverse magnetization in magnetic resonance
TL;DR: In this article, a method for exciting transverse magnetization by irradiating a nuclear spin system subjected to a constant magnetic field with a frequency-modulated rf-pulse ("chirp"-pulse) and with a further frequency-modified rfpulse (further chirppulse), for refocusing the magnetization, is characterized in that the rf pulse-(P1) and the further pulse (P2) overlap each other in time at least partially.
PatentDOI
Method for determining optimized radio-frequency pulse shapes for selective excitation in magnetic resonance spectroscopy and imaging
TL;DR: In this paper, a spin system with a frequency-selective radio-frequency (RF) pulse was used for magnetic resonance spectroscopy and imaging, and the shape of the pulse was optimized.
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