Influence of noise on peak integrals obtained by direct summation

被引:5
作者
Bourg, S [1 ]
Nuzillard, JM [1 ]
机构
[1] CPCBAI, UPRESA 6013, Lab Pharmacognosie, F-51097 Reims 2, France
关键词
integration; zero-filling; apodization;
D O I
10.1006/jmre.1998.1500
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
The influence of zero-filling on the peak integral precision is examined when integration is carried out by direct summation of spectral point ordinates. A relationship that allows the computation of the standard deviation of the integrals is derived, taking into account the effects of apodization and noise intensity profile. Discrepancies between theory and experimentation arise from nonideal characteristics of noise. (C) 1998 Academic Press.
引用
收藏
页码:184 / 188
页数:5
相关论文
共 10 条
[1]  
CHEN L, 1986, CHEMOMETRICS INTELLI, V1, P51
[2]  
Ernst R.R., 1966, Adv. Magn. Reson, V2, P1, DOI 10.1016/B978-1-4832-3115-0.50008-9
[3]  
FREEMAN R, 1988, DICT NMR CONCEPTS
[4]  
LED JJ, 1994, METHOD ENZYMOL, V239, P318
[5]  
Marshall A.G., 1990, Fourier Transforms in NMR, Optical, and Mass Spectrometry
[6]   PRECISION IN MEASURING RESONANCE-SPECTRA [J].
POSENER, DW .
JOURNAL OF MAGNETIC RESONANCE, 1974, 14 (02) :121-128
[7]   FUNDAMENTALS OF PEAK INTEGRATION [J].
RISCHEL, C .
JOURNAL OF MAGNETIC RESONANCE SERIES A, 1995, 116 (02) :255-258
[8]  
Vetterling W. T, 2002, NUMERICAL RECIPES C
[9]   ACCURACY AND PRECISION IN THE ESTIMATION OF PEAK AREAS - THE EFFECTS OF APODIZATION [J].
WEISS, GH ;
KIEFER, JE ;
FERRETTI, JA .
CHEMOMETRICS AND INTELLIGENT LABORATORY SYSTEMS, 1988, 4 (03) :223-229
[10]   Zooming, a practical strategy for improving the quality of multidimensional NMR spectra [J].
Zolnai, Z ;
Juranic, N ;
Markley, JL ;
Macura, S .
JOURNAL OF MAGNETIC RESONANCE SERIES A, 1996, 119 (01) :53-64