High resolution para-hydrogen induced polarization in inhomogeneous magnetic fields

被引：19
作者：
Buljubasich, L. [1 ]
Prina, I. [1 ]
Franzoni, M. B. [2 ]
Muennemann, K. [2 ]
Spiess, H. W. [2 ]
Acosta, R. H. [1 ]
机构：
[1] FAMAF Univ Nacl Cordoba, IFEG CONICET, Cordoba, Argentina
[2] Max Planck Inst Polymer Res, D-55128 Mainz, Germany
来源：
JOURNAL OF MAGNETIC RESONANCE | 2013年 / 230卷
关键词：
Parahydrogen; Hyperpolarization; Enhanced NMR; PHIP; PASADENA; J-spectrum; Inhomogeneous Fields; CPMG; PARAHYDROGEN-INDUCED POLARIZATION; CS-SYMMETRIC MOLECULES; SPIN SYSTEMS; NMR-SPECTROSCOPY; HYPERPOLARIZATION; ORDER; C-13; RESONANCE; STATES; H-1;
D O I：
10.1016/j.jmr.2013.02.008
中图分类号：
Q5 [生物化学];
学科分类号：
071010 ; 081704 ;
摘要：
The application of parahydrogen for the generation of hyperpolarization has increased continuously during the last years. When the chemical reaction is carried out at the same field as the NMR experiment (PASADENA protocol) an antiphase signal is obtained, with a separation of the resonance lines of a few Hz. This imposes a stringent limit to the homogeneity of the magnetic field in order to avoid signal cancellation. In this work we detect the signal arising from hyperpolarized Hexene by means of a CPMG pulse train. After Fourier transformation the obtained J-spectra not only presents an enhanced spectral resolution but also avoids partial peak cancellation. (C) 2013 Elsevier Inc. All rights reserved.
引用
收藏
页码：155 / 159
页数：5
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