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Body fluids composition, by ASTM F2129-17b (Adapted/Reprinted with permission from Ref. [51]. Copyright @ 2019, MDPI).
| Component | Serum (mg/L) | Synovial Fluid (mg/L) | Interstitial Fluid (mg/L) |
|---|---|---|---|
| Cl− | 3581 | 3811 | 4042 |
| Na+ | 3265 | 3127 | 3280 |
| HCO3− | 1648 | 1880 | 1892 |
| Organic acids | 210 | - | 245 |
| K+ | 156 | 156 | 156 |
| Ca2+ | 100 | 60 | 100 |
| HPO42− | 96 | 96 | 96 |
| SO42− | 48 | 48 | 48 |
| Mg2+ | 24 | - | 24 |
| Protein | 66,300 | 15,000 | 4144 |
