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Table 3
Synthetic water formulations.
| Macro nutrients | Standard freshwater prepared with deionized water (according to US EPA, 1994) moderately hard water | Standard freshwater prepared with deionized or distilled water (ISO medium according to ISO 6341) | Medium M4 and M7 (according to OECD, 2004, 2011b) |
|---|---|---|---|
| Concentration, mg/L | |||
| NaHCO3 | 96 | 67.75 | 64.8 |
| CaCl2.2H2O | 120 | 294 | 293.8 |
| MgSO4.7H2O | 123 | 123.25 | 123.3 |
| KCl | 4 | 5.75 | 5.8 |
| NaSiO3.9H2O | – | – | 10.0 |
| NaNO3 | – | – | 0.274 |
| KH2PO4 | – | – | 0.143 |
| K2HPO4 | – | – | 0.184 |
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