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. Author manuscript; available in PMC: 2008 Sep 6.
Published in final edited form as: J Am Chem Soc. 2007 Jun 20;129(28):8825–8835. doi: 10.1021/ja071820f

Figure 3.

Figure 3

(a) The concentration of saline drops stored in wells with respect to time after a change in reservoir salt concentration. Drop concentrations are inferred by measuring the drop area: Xdrop (t) = Xo · Ao/A(t). The data are identical to Figure 2a. First, all drops had the same initial sodium chloride concentration, Xo = 2 M, and at t = 0 were exposed to different reservoir conditions (Xres) for 18 hours: 6 M (square), 4 M (triangle), 3 M (diamond). Next, the reservoir conditions were changed to the same concentration; Xres = 2 M. The solid lines are theory (Eq. 1); all six curves are generated with the same value of the single fitting parameter, P = 7.4 × 10−13[m2/s] and the other parameters are given in the text. (b) The table shows the experimental steady state concentration X∞ and time constant τ obtained by fitting Equation (1) to the data in Fig 2a, while the theoretical values are calculated from Equations (2) and (3), respectively.