Table 4.

Cation and anion transport properties across OK cells

Buffer	NaCl	LiCl	KCl	RbCl	CsCl	NaI	NaBr
DP (cells and blank insert, mV ± SE)	0.83 ± 0.03	0.87 ± 0.04	1.30 ± 0.02	0.99 ± 0.04	1.02 ± 0.06	0.89 ± 0.02	0.35 ± 0.06
DP (blank insert, mV ± SE)	0.12 ± 0.03	0.25 ± 0.03	0.21 ± 0.02	0.198 ± 0.002	0.19 ± 0.01	0.15 ± 0.04	0.09 ± 0.04
PX+/PCl− (±SE)	1.10 ± 0.01	1.08 ± 0.01	1.15 ± 0.01	1.11 ± 0.01	1.12 ± 0.01	1.10 ± 0.01	1.03 ± 0.01

Dilution potentials (DP) and calculated permeability ratios of OK cells on semipermeable membranes and of just the semipermeable membranes measured from Ussing chamber DP experiments using NaCl, KCl, CsCl, LiCl, RbCl, NaBr, and NaI buffers; n = 8 for all except CsCl (n = 7) and NaBr (n = 4).