Figure 4

Liner dependence between the ionic concentration and the intensity ratio of the bands DA and DDAA, r = I _DA /I _DDAA , for solutions of NaCl (a), KCl (b), MgCl₂ (c), CaCl₂ (d), NaHCO₃ (e), Hepes (f), glucose (g) and proteins (bovine serum albumin) (h).