ANALYSIS OF TIME-DOMAIN NMR DATA BY STANDARD NONLINEAR LEAST-SQUARES

被引：19
|
作者：
MONTIGNY, F
BRONDEAU, J
CANET, 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 | 1990年 / 170卷 / 2-3期
关键词：
D O I：
10.1016/0009-2614(90)87111-4
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：
Standard non-linear least-squares are used for deriving spectral characteristics (frequency, amplitude, damping factor and phase) from time-domain NMR data (FID). The method requires initial estimates and involves an iterative process. With normal equations properly recast, the method is seen to be of general applicability within a model of damped sinusoids. The processing time is quite reasonable. Various tests demonstrate the validity of this procedure for quantitative determination purposes, especially for weak signals in the presence of intense resonances or for overlapping resonances with different linewidths. © 1990.
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收藏
页码：175 / 180
页数：6
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