Table 1.
Summary of external and internal solution recipes for major ions and compounds
| Chemical | External Solution, mM | Internal Solution, mM | Eion, mV |
|---|---|---|---|
| Na+ | 151.2 (151.0–153.0) | 8.0 (2.35–18.35) | 75.4 (55.5–109.0) |
| K+ | 2.8 (2.5–3.0) | 135.0 (130.0–140.0) | −101.7 (−105.0–98.0) |
| Cl− | 133.5 (131.9–135.0) | 10.0 (6.0–20.0) | −68.2 (−81.5–50.0) |
| Mg2+ | 1.3 (1.0–2.0) | 3.0 (2.0–4.0) | −9.1 (−17.6–0.0) |
| Ca2+ | 2.0 (2.0–2.0) | Q3 = 0.0 (max 2.0) | 190.1 (184.5–192.0) |
| HEPES | 0.0 | 10.0 (10.0–10.0) | N/A |
| EGTA | 0.0 | 0.1 (0.0–0.5) | N/A |
| ATP | 0.0 | 3.0 (2.0–4.0) | N/A |
| GTP | 0.0 | 0.3 (0.2–0.3) | N/A |
| Glucose | 10.0 (10.0–20.0) | 0.0 | N/A |
Data are external and internal solution recipes for the major ions and compounds considered in the 509 articles used in this study. Values are given as medians (1st–3rd quartiles). For reversal potential (Eion) calculations, ion concentrations that were effectively zero were assigned an arbitrary small concentration of 10−6 mM. Values for the internal solution Ca2+ concentration are shown as 3rd quartile (maximum value) due to sparsity of its values. N/A, not applicable.