Table 6.

Solutions used in Fig. 6

Component	Ca2+-free ND96, mM	ND96/SO32−, mM	33 mM HCO3−
Na+	96	96	96
K+	2	2	2
Mg2+	1	1	1
Ca2+	0	0	0
Total cations, meq	100	100	100
Cl−	97.5	38.1	64.5
HCO3−	0	0	33
SO32−	0	26.4	0
HSO3−	0	6.6	0
HEPES−	2.5	2.5	2.5
Total anions, meq	100	100	100
Mannitol	0	33	0
HEPES (neutral)	2.5	2.5	2.5
pH	7.5	7.5	7.5

The 33-mM HCO₃⁻ solutions were equilibrated with 5% CO₂/95% O₂. Osmolarity of all solutions was ∼200 mosM.