Fig. 6. Apparent K_D–values obtained in either the whole cell (closed symbols), the desorption half-cell (open symbols) or in the adsorption half-cell (dotted open symbols) for Hiroshima, Yolo, and Lerbjerg 5 as a function of contact time in the diffusion experiments. Part of the data for Lerbjerg 5 are from Olesen et al. (2001).