Quantitative Analysis of Chloride by Chlorine-35 NMR Spectroscopy

摘要

While providing the most important information on the structures and dynamics unattainable by other instruments,nuclear magnetic resonance(NMR)spectroscopy method in quantitative analysis was the most unpopular method because of the inherent low sensitivity.However,emerging techniques to improve the sensitivity and high field NMR enable the NMR method to be used as one of the primary analytical method during the last few years.Although its applications are generally limited to the use of hydrogen nucleus,1 we recently reported that some of the hetero-nuclear NMR methods including phosphorus and sodium are either comparable or superior to that of the conventional methods in the field of accuracy and precision.2'3 Especially the advantages of this NMR method over the other methods are the selectivity and the simplicity of procedure.