Capillary electrophoresis , natural hyphenated techniques

The hyphenation of CE and NMR combines a powerful separation technique with an information-rich detection method. Although compared with LC-NMR, CE-NMR is still in its infancy it has the potential to impact a variety of applications in pharmaceutical, food chemistry, forensics, environmental, and natural products analysis because of the high information content and low sample requirements of this method [82-84]. In addition to standard capillary electrophoresis separations, two CE variants have become increasingly important in CE-NMR, capillary electrochromatography and capillary isotachophoresis, both of which will be described later in this section. 

Physicochemical Properties of Natural Products and Their Influence on Choice of Analytical Methods The hyphenation of chromatography-based techniques such as GC, high performance hquid chromatography (HPLC), or capillary electrophoresis (CE) with MS is in many cases necessary for the qualitative and quantitative analyses of components of plant materials. The configuration of the instrumental systems is dependent on the physicochemical properties of various classes of compounds under investigation. 

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