Table 1.
Values of the non-HCO3− buffer factor BFnon-HCO3 in rat EDL and soleus
| +Na+ | −Na+ | −Na+ + 10−5m BZ | −Na+ + 1 mm DIDS | |
|---|---|---|---|---|
| EDL | 38 (1) | 36 ± 4 (7) | 32 ± 6 (4) | 35 (2) |
| Soleus | 74 ± 17 (5) | 92 ± 13 (6) | 94 ± 13 (6) | — |
Experiments were done in Ringer solution with Na+ (+ Na+), without Na+ (− Na+), without Na+ but with the carbonic anhydrase inhibitor benzolamide, BZ (− Na++ 10−5 m BZ), and without Na+ but with DIDS (− Na++ 1 mm DIDS). Na+ was replaced by choline. BFnon-HCO3 values (mm ΔpH−1) are means ± s.d. Numbers in parentheses give numbers of experiments.