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Organic Analysis in Environmental Samples by Capillary Electrophoresis

Environment: Water and Waste

  1. Carmen García-Ruiz,
  2. Antonio L. Crego,
  3. Maria L. Marina

Published Online: 15 SEP 2006

DOI: 10.1002/9780470027318.a0850

Encyclopedia of Analytical Chemistry

Encyclopedia of Analytical Chemistry

How to Cite

García-Ruiz, C., Crego, A. L. and Marina, M. L. 2006. Organic Analysis in Environmental Samples by Capillary Electrophoresis. Encyclopedia of Analytical Chemistry. .

Author Information

  1. Universidad de Alcalá, Madrid, Spain

Publication History

  1. Published Online: 15 SEP 2006

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Capillary electrophoresis (CE) is an instrumental technique that employs narrow-bore (10–100 µm ID, internal diameter) capillaries under the influence of a high-gradient electric field to perform high-efficiency separations. Different working modes of CE have been described. Capillary zone electrophoresis (CZE) and micellar electrokinetic chromatography (MEKC) have become the most popular modes of CE in environmental applications. Other kinds of electrokinetic chromatography (EKC) and other modes of CE like capillary electrochromatography (CEC) have also been used.

CE techniques have been considered as a good alternative for analyzing pollutants because of their high performance and versatility related to selectivity and range of application. In addition, CE is a powerful tool in the field of chiral separations and it is considered one of the so-called clean analytical techniques. Although the main drawback of CE techniques in environmental analysis is their insufficient sensitivity for detecting trace-level pollutants, some procedures have been developed in order to overcome this problem.