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Recovery of oxalates in fortified Nerium oleander samples.
| Mean amount of oxalates in samples (mg) (n = 4) | Mean amount of oxalate fortification (mg) | Determined oxalate contents (mg) | Oxalate recovered (mg) | Recovery (%) | RSD (%) |
|---|---|---|---|---|---|
| 0.348 | 0.00 | 0.342 | - | - | - |
| 0.348 | 0.26 | 0.583 | 0.256 | 98.5 | 2.3 |
| 0.348 | 0.33 | 0.610 | 0.283 | 85.7 | 1.03 |
| 0.348 | 0.39 | 0.640 | 0.313 | 80.3 | 1.22 |
mg, milligrams; RSD, relative standard deviation.
