Nuclear magnetic resonance spectroscopy, and

Karge FI G, Flunger M and Beyer FI K 1999 Characterization of zeolites—infrared and nuclear magnetic resonance spectroscopy and x-ray diffraction Catalysis and Zeolites, Fundamentals and Applications ed J Weitkamp and L... 

Physical Methods of Examination. Physical methods used to examine coals can be divided into two classes which, in the one case, yield information of a stmctural nature such as the size of the aromatic nuclei, ie, methods such as x-ray diffraction, molar refraction, and calorific value as a function of composition and in the other case indicate the fraction of carbon present in aromatic form, ie, methods such as ir and nuclear magnetic resonance spectroscopies, and density as a function of composition. Some methods used and types of information obtained from them are (41) ... 

Godejohann M, M Astratov, A Preiss, K Levsen, C Miigge (1998) Application of continuous-flow HPLC-proton-nuclear magnetic resonance spectroscopy and HPLC-thermospray spectroscopy for the structrual elucidation of phototransformation products of 2,4,6-trinitrotoluene. Anal Chem 70 4104-4110. 

Green NA, AA Meharg, C Till, J Troke, JK Nicholson (1999) Degradation of 4-fluorobiphenyl by mycorrizal fungi as determined by F nuclear magnetic resonance spectroscopy and " C radiolabelling analysis. Appl Environ Microbiol 65 4021-4027. 

Duarte, A. Barros, P. S. Belton, R. Righelato, M. Spraul, E. Humpfer, A. M. Gil 2002, (High-resolution nuclear magnetic resonance spectroscopy and multivariate analysis for the characterisation of beer),/. Agric. Food Chem. 50, 2475-2481. 

The absolute configuration of the 9,10-dihydrodiol metabolite was established to be 9R,10R both by nuclear magnetic resonance spectroscopy and by the structures of the hydrolysis products formed from the svn and anti 9,10-dihydrodio 1-7,8-epoxides which were synthesized from the same 9,10-dihydrodiol enantiomer (13). The absolute configuration of a BaP trans-9.10-dihvdrodiol enantiomer, after conversion to a tetrahydro product, can also be determined by the exciton chirality method (Figure 2) (19.20). 

Nuclear magnetic resonance spectroscopy and electron spin resonance spectroscopy... 

Meyer, C., Pascui, O., Reichert, D., Sander, L.C., Wise, S.A., and Albert, K., Conformational temperature dependence of a poly(ethylene-co-acrylic acid) stationary-phase investigated by nuclear magnetic resonance spectroscopy and liquid chromatography, J. Sep. Set, 29, 820, 2006. 

Xiao, H. B., Krucker, M., Putzhach, K., and Albert, K., Capillary liquid chromatography-microcoil IH nuclear magnetic resonance spectroscopy and liquid chromatography-ion trap mass spectrometry for on-hne structure elucidation of isoflavones in Radix astragali. Journal of Chromatography A 1067(1-2), 135-143, 2005. 

C. Thomas, C. Counsell, P. Wood, G.E. Adams, Use of F-19 nuclear-magnetic-resonance spectroscopy and hydralazine for measuring dynamic changes in blood perfusion volume in tumors in mice, J. Natl. Cancer Inst. 84 (1992) 174-180. 

Vargha was very progressive as far as the application of new techniques was concerned. He aided the introduction of the various chromatographic methods and the use of infrared (i.r.) and nuclear magnetic resonance spectroscopy and mass spectrometry in solving the various problems of structure determination. Despite the fact... 

Crystallography, and by 400-MHz, Proton Nuclear Magnetic Resonance Spectroscopy and High-resolution Mass Spectrometry. 183... 

Some attempt has been made to establish relationships between chemical shifts, measured by nuclear magnetic resonance spectroscopy and redox potential data.42... 

Forensic scientists make use of both these techniques because they are very accurate but they only require tiny amounts of sample - often only small amounts of sample are found at crime scenes. Other techniques utilised are nuclear magnetic resonance spectroscopy and ultraviolet/visible spectroscopy... 

Duarte, I., Barros, A., Belton, P. S., Righelato, R., Spraul, M., Humpfer, E., and Gil, A. M. (2002). High-resolution nuclear magnetic resonance spectroscopy and multivariate statistical analysis for the characterization of beer.. Agric. Food Chem. 50, 2475-2481. Duarte, I. F., Barros, A., Almeida, C., Spraul, M., and Gil, A. M. (2004). Multivariate analysis of NMR and FTIR data as a potential tool for the quality control of beer. J. Agric. Food Chem. 52, 1031-1038. 

Giraudon, S., Danzart, M., and Merle, M. H. (2000). Deuterium nuclear magnetic resonance spectroscopy and stable carbon isotope ratio analysis/mass spectrometry of certain monofloral honeys.. AOAC Int. 83,1401-1409. 

Schievano, E., Pasini, G., Cozzi, G., and Mammi, S. (2008). Identification of the production chain of Asiago d Allevo cheese by nuclear magnetic resonance spectroscopy and principal component analysis.. Agric. Food Chem. 56, 7208-7214. 

In search of new natural products, crude extracts are classically subjected to multi-step work-up and isolation procedures which include various separation methods (besides HPLC, for instance, column, gel or counter-current chromatography) in order to obtain pure compounds which are then structurally elucidated by using off-line spectroscopic methods such as nuclear magnetic resonance spectroscopy and mass spectrometry. 

There is evidence from nuclear magnetic resonance spectroscopy and partial molar volume measurements153-154 which points to the possible existence of bound water in the micelle interior in the region of the first few CH2 groups in from the polar head groups. The hydrocarbon interior of the micelle may, therefore, be considered in terms of an outer region which may be penetrated by water and an inner region from which water is excluded. 

DiCosty, R. J., Weliky, D. P, Anderson, S. J., and Paul, E. A. (2003). 15N-CPMAS nuclear magnetic resonance spectroscopy and biological stability of soil organic nitrogen in whole soil and particle-size fraction. Org. Geochem. 34,1635-1650. 

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