Measurement of magnetic susceptibility and calculation of shape factor of NMR samples

被引:57
作者
Hoffman, RE [1 ]
机构
[1] Hebrew Univ Jerusalem, Dept Organ Chem, IL-91904 Jerusalem, Israel
关键词
shape factor; susceptibility; chemical shift; BMS shift;
D O I
10.1016/j.jmr.2005.09.009
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
A method for accurate measurement of magnetic susceptibility and determination of the shape factor in ail NMR tube is shown. The combination of accurate shape factor determination with susceptibility measurement leads to improved accuracy when measuring chemical shift. This is important for comparing samples in different solvents or under different conditions, such as temperature, solvent, and pH. (c) 2005 Elsevier Inc. All rights reserved.
引用
收藏
页码:237 / 247
页数:11
相关论文
共 38 条
[1]  
[Anonymous], [No title captured]
[2]  
[Anonymous], [No title captured]
[3]  
[Anonymous], [No title captured]
[4]   SCAM-STMAS: satellite-transition MAS NMR of quadrupolar nuclei with self-compensation for magic-angle misset [J].
Ashbrook, SE ;
Wimperis, S .
JOURNAL OF MAGNETIC RESONANCE, 2003, 162 (02) :402-416
[5]   High-resolution NMR spectroscopy of quadrupolar nuclei in solids: Satellite-transition MAS with self-compensation for magic-angle misset [J].
Ashbrook, SE ;
Wimperis, S .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (39) :11602-11603
[6]   SOLVENT EFFECTS ON 5 SHIELDING CONSTANTS IN TETRAMETHYLSILANE AND CYCLOHEXANE [J].
BACON, MR ;
MACIEL, GE .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1973, 95 (08) :2413-2426
[7]   Isotropic susceptibility shift under MAS:: The origin of the split water resonances in 1H MAS NMR spectra of cell suspensions [J].
Chen, JH ;
Enloe, BM ;
Xiao, Y ;
Cory, DG ;
Singer, S .
MAGNETIC RESONANCE IN MEDICINE, 2003, 50 (03) :515-521
[8]  
CHU SCK, 1990, MAGN RESON MED, V13, P239, DOI 10.1002/mrm.1910130207
[9]   PH-DEPENDENCE OF INTERNAL REFERENCES [J].
DEMARCO, A .
JOURNAL OF MAGNETIC RESONANCE, 1977, 26 (03) :527-528
[10]  
*DES I PHYS PROP, 1998, PHYS THERM PROP PUR