Calculation of electrophoretic mobilities in water-organic modifier mixtures in capillary electrophoresis

In order to correlate/predict electrophoretic mobility data in the mixture of water+organic modifier four equations have been presented and examined. The experimental mobilities of five analytes were determined in a water-met hanol mixture. These data have been used to assess the accuracy and predict ability of the models. Also, some previously published mobility data in wat er-organic modifier mixtures has been employed for further evaluation of th e models. The models produced accurate results and the means of percentage deviations were in the range of 0.66-1.30. (C) 2000 Elsevier Science B.V. A ll rights reserved.