Electrical Potential as a Driving Force in Sample Preparation.

To achieve lower detection limits and better selectivity, researchers are always exploring new ways to enhance sample preparation and separation technology. The addition of electrical potential to existing technologies or for entirely new approaches is relatively unexplored but can create another dimension of selectivity in sample preparation. In addition, speed and sensitivity are added benefits. This instalment looks at the use of electroenhancement to solid-phase extraction, solid-phase microextraction, and membrane and liquid extraction. [ABSTRACT FROM AUTHOR]