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Composition of solutions
| Hepes | Na+‐free Hepes | Low HCO3 – | High HCO3 – | |
|---|---|---|---|---|
| [K+] (mm) | 5 | 5 | 5 | 5 |
| [Na+] (mm) | 140 | 0.1 | 140 | 140 |
| [Cl–] (mm) | 141 | 141 | 124 | 24 |
| [HCO3 –] (mm) | 0.1 | 0.1 | 25 | 125 |
| [HEPES] (mm) | 10 | 10 | – | – |
| [X] (mm) | 12 | 152 | 12 | 12 |
| pH | 7.40 | 7.40 | 7.42 | 8.12 |
| pCO2 (mmHg) | 0.1 | 0.1 | 38 | 38 |
