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The recovery rates of other three concentrations of BNP
| Added concentration (ng/mL) | Optical density (au) | Calculated concentration (ng/mL) | Standard deviation | Recovery rates |
|---|---|---|---|---|
| 0.4 | 0.067 | 0.374 | 0.008 | 0.937±0.020 |
| 0.6 | 0.044 | 0.499 | 0.007 | 0.831±0.012 |
| 0.8 | 0.034 | 0.781 | 0.005 | 0.976±0.006 |
Abbreviation: BNP, brain natriuretic peptide.
