Magnesium chloride:: an efficient 13C NMR relaxation agent for amino acids and some carboxylic acids

被引:15
作者
Tian, JP [1 ]
Yin, YW [1 ]
Sun, HB [1 ]
Luo, XF [1 ]
机构
[1] Tsing Hua Univ, Dept Chem, Beijing 100084, Peoples R China
关键词
amino acids; carboxylic acids; magnesium chloride; C-13 NMR spectroscopy; C-13 NMR relaxation agent;
D O I
10.1016/S1090-7807(02)00016-2
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
A series of amino acids and carboxylic acids ere determined by C-13 NMR spectroscopy. The results showed that addition of 3M MgCl2, led to shortening of relaxation time and C-13 NMR integral area of samples was well proportional to the number of carbon atoms with reliability more than 95%. So MgCl2 is proposed as an efficient relaxation agent for analysis of amino acids and some carboxylic acids. (C) 2002 Elsevier Science (USA). All rights reserved.
引用
收藏
页码:137 / 144
页数:8
相关论文
共 13 条
[1]   DETERMINATION OF FUNCTIONALITY AND FUNCTIONALITY DISTRIBUTION OF POLYETHER POLYOLS BY QUANTITATIVE C-13 NMR-SPECTROSCOPY [J].
CARR, RH ;
HERNALSTEEN, J ;
DEVOS, J .
JOURNAL OF APPLIED POLYMER SCIENCE, 1994, 52 (08) :1015-1022
[2]   Heterogeneous anionic coordinated polymerization of propylene oxide: A quantitative C-13 NMR analysis of the regio- and stereo-selectivity of the catalyst via microstructure analysis of polymers [J].
Goriot, R ;
Petiaud, R ;
Llauro, MF ;
Hamaide, T .
MACROMOLECULAR SYMPOSIA, 1997, 119 :173-188
[3]  
Luukko P, 1998, J APPL POLYM SCI, V69, P1805, DOI 10.1002/(SICI)1097-4628(19980829)69:9<1805::AID-APP15>3.0.CO
[4]  
2-K
[5]   Quantitative 13C NMR study of structural variations within the vitrinite and inertinite maceral groups for a semifusinite-rich bituminous coal [J].
Maroto-Valer, MM ;
Taulbee, DN ;
Andresen, JM ;
Hower, JC ;
Snape, CE .
FUEL, 1998, 77 (08) :805-813
[6]  
NING YC, 2000, STRUCTURAL IDENTIFIC, P16
[7]   Quantitative carbon-13 solid-state nmr and FT-Raman spectroscopy in novolac resins [J].
Ottenbourgs, B ;
Adriaensens, P ;
Carleer, R ;
Vanderzande, D ;
Gelan, J .
POLYMER, 1998, 39 (22) :5293-5300
[8]   DEVELOPMENT AND OPTIMIZATION OF FAST QUANTITATIVE C-13 NMR CHARACTERIZATION METHODS OF NOVOLAC RESINS [J].
OTTENBOURGS, BT ;
ADRIAENSENS, PJ ;
REEKMANS, BJ ;
CARLEER, RA ;
VANDERZANDE, DJ ;
GELAN, JM .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1995, 34 (04) :1364-1370
[9]   Peptide and the origin of life [J].
Rode, BM .
PEPTIDES, 1999, 20 (06) :773-786
[10]  
Vlahov G, 1997, MAGN RESON CHEM, V35, pS8, DOI 10.1002/(SICI)1097-458X(199712)35:13<S8::AID-OMR204>3.0.CO