Illustrating NMR cross-polarization (CP) with a microcomputer

被引：0
|
作者：
Olivieri, AC [1 ]
机构：
[1] Univ Nacl Rosario, Fac Ciencias Bioquim & Farmaceut, Dept Quim Analit, RA-2000 Rosario, Santa Fe, Argentina
来源：
CONCEPTS IN MAGNETIC RESONANCE | 1998年 / 10卷 / 06期
关键词：
cross-polarization; microcomputer programs; correlation time; spin temperature;
D O I：
10.1002/(SICI)1099-0534(1998)10:6<343::AID-CMR2>3.0.CO;2-X
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：
As a continuation of previous works. QuickBasic computer programs have been developed for the solution of the equations describing the transfer of polarization in a system of coupled spins. when spin-lock conditions are applied. The transfer is considered to take place through a simple model of dipolar spin-spin interactions. The presence of a randomly changing surrounding is modeled by the random number generator of a microcomputer. The discussed examples allow one to understand the effects of cross-polarization as a function of the correlation time tau(0), and to introduce the concept of spin temperature. (C) 1998 John Wiley & Sons. Inc.
引用
收藏
页码：343 / 354
页数：12
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