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The ion concentrations of SBF and human blood plasma according to the ISO standard (10−3 mol/L)
| Ion | SBF (pH 7.40) | Blood plasma (pH 7.2–7.4) |
|---|---|---|
| Na+ | 142 | 142 |
| K+ | 5.0 | 5.0 |
| Mg2+ | 1.5 | 1.5 |
| Ca2+ | 2.5 | 2.5 |
| Cl− | 148 | 103 |
| HCO3− | 4.2 | 27 |
| HPO42− | 1.0 | 1.0 |
| SO42− | 0.5 | 0.5 |
