pH Ps  (mol dm–3)
Without ergosterol With ergosterol Without ergosterol With ergosterol
6.5 0.4683 0.3879 0.3580 0.2525
5.5 0.5572 0.4439 0.4458 0.2972
4.5 0.6477 0.5339 0.5474 0.3788
3.5 0.6806 0.5802 0.6223 0.4275
2.5 0.7342 0.6532 0.6789 0.5177
1.5 0.7499 0.7022 0.6803 0.5918
Table 4: Permselectivity and fixed charge density values at different pH for NaCl : C = 0.30, C1 = 0.40, C2 = 0.20 (mol dm–3).