AVERAGING EFFECTS IN NMR-SPECTROSCOPY BY A RADIOFREQUENCY FIELD GRADIENT - INDUCED COHERENCE TRANSFERS

被引：11

作者：

CANET, D

TEKELY, P

MAHIEU, N

BOUDOT, D

机构：

[1] Laboratoire de Méthodologie RMN (URA CNRS No. 406 - LESOC), Université de Nancy I, 54506 Vandœuvre les Nancy Cedex

来源：

CHEMICAL PHYSICS LETTERS | 1991年 / 182卷 / 06期

关键词：

D O I：

10.1016/0009-2614(91)90121-O

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A radio-frequency (rf) field gradient, applied for an arbitrary period, has the ability to induce coherence transfers. This property stems from the 0.5 value for the averages of sin2-theta and cos2-theta, where theta-stands for a nutation angle. Two experimental illustrations of these features are given: a COSY experiment where the second pi/2 pulse is replaced by one rf gradient pulse and an experiment, involving two rf gradient pulses, aimed at the determination of auto-diffusion coefficients.

引用

页码：541 / 546

页数：6

共 9 条

[1] INVESTIGATION OF COMPLEX NETWORKS OF SPIN-SPIN COUPLING BY TWO-DIMENSIONAL NMR [J].

BAX, A ;

FREEMAN, R .

JOURNAL OF MAGNETIC RESONANCE, 1981, 44 (03) :542-561

[2] EFFECT OF RELAXATION AND DIFFUSION ON SPATIALLY INHOMOGENEOUS MAGNETIZATION - APPLICATION TO SELF-DIFFUSION MEASUREMENTS EMPLOYING A RADIOFREQUENCY FIELD GRADIENT [J].

BLECHTA, V ;

SCHRAML, J .

JOURNAL OF MAGNETIC RESONANCE, 1990, 87 (03) :601-604

[3] A B1-GRADIENT METHOD FOR THE DETECTION OF SLOW COHERENT MOTION [J].

BOURGEOIS, D ;

DECORPS, M .

JOURNAL OF MAGNETIC RESONANCE, 1991, 91 (01) :128-135

[4] COHERENCE TRANSFER BY ISOTROPIC MIXING - APPLICATION TO PROTON CORRELATION SPECTROSCOPY [J].

BRAUNSCHWEILER, L ;

ERNST, RR .

JOURNAL OF MAGNETIC RESONANCE, 1983, 53 (03) :521-528

[5] SELF-DIFFUSION MEASUREMENTS USING A RADIOFREQUENCY FIELD GRADIENT [J].

CANET, D ;

DITER, B ;

BELMAJDOUB, A ;

BRONDEAU, J ;

BOUBEL, JC ;

ELBAYED, K .

JOURNAL OF MAGNETIC RESONANCE, 1989, 81 (01) :1-12

[6]

DECORPS M, IN PRESS COMMUNICATI

[7] DETECTION OF MOTION USING B-1 GRADIENTS [J].

KARCZMAR, GS ;

TWIEG, DB ;

LAWRY, TJ ;

MATSON, GB ;

WEINER, MW .

MAGNETIC RESONANCE IN MEDICINE, 1988, 7 (01) :111-116

[8] MULTIPLE QUANTUM FILTERS FOR ELUCIDATING NMR COUPLING NETWORKS [J].

PIANTINI, U ;

SORENSEN, OW ;

ERNST, RR .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1982, 104 (24) :6800-6801

[9]

SORENSEN OW, 1983, PROG NUCL MAG RES SP, V16, P163

← 1 →