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The melatonin amount values (mean of three replicates) calculated in pharmaceutical formulations by fixed-potential amperometry
| Sample | Melatonin-labeled value (mg) | Melatonin found value (mg)a | RSD (mg) |
|---|---|---|---|
| Bio-Melatonina (Pharma Nord) | 3 | 2.98 | 0.015 |
| Bien Dormir® (SC Fiterman Pharma SA) | 1.5 | 1.53 | 0.011 |
| Melatonina (Cosmopharm) | 3 | 3.05 | 0.014 |
Notes:
Mean of three replicates.
Abbreviation: RSD, relative standard deviation.
