Fig. 3

Uncertainty of partition coefficients calculated according to Eq. 3. Uncertainties were determined with standard analytical errors of ε = ± 5% (dotted lines) and of ε = ± 10% (dashed lines). The differences between the measured D_P (x-axis) and the calculated D_P (y-axis) are displayed by the black and red symbols for PE and PS, respectively. Crosses, circles, and pluses indicate D_P values determined at pH 4, pH 7, and pH 10, respectively