Detection in capillary electrophoresis

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Abstract
A review of the four major, on‐line, capillary electrophoresis (CE) detection modalities is presented. It is shown that each detection method, fluorescence, absorbance (conventional and nonconventional), electrochemical and refractive index, have distinct advantages and limitations when applied to analysis in a CE format. Various aspects of CE detection are considered and a perspective regarding the applicability of the technique is provided. It is shown that because of widely varying detection limits (ranging from single molecule to 10—5 M) and detection scheme complexity, the particular application should dictate the selection of detection methodology in CE.