| Direct precipitation | Purity | Quantity (mg/g) |
|---|---|---|
| 20% | 0.39 ± 0.04 | 4.53 ± 0.075 |
| 30% | 0.59 ± 0.02 | 5.84 ± 0.49 |
| 40% | 0.77 ± 0.00 | 5.74 ± 0.15 |
| 50% | 0.77 ± 0.00 | 6.09 ± 0.13 |
| 60% | 0.79 ± 0.00 | 7.00 ± 0.13 |
| 70% | 0.82 ± 0.00 | 9.89 ± 0.26 |
| 0–20%/20–65% | 0.99 ± 0.02 | 3.44 ± 0.13 |
| 0–30%/30–65% | 0.81 ± 0.06 | 4.53 ± 0.16 |
| 0–40%/40–65% | 0.76 ± 0.01 | 2.67 ± 0.099 |