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Ascorbic acid determination in pharmaceutical products on PEI + β-CD/GCE by using SWV.
| Pharmaceutical Product | Theoretical Concentration (μM) | Found Concentration (μM) | Recovery (%) | RSD (%) |
|---|---|---|---|---|
| Vitamina C® Arena | 157.48 | 154.72 | 98.25 | |
| 176.81 | 175.45 | 99.23 | 1.41 | |
| 193.07 | 195.04 | 101.02 | ||
|
| ||||
| Vitamina C® Biofarm | 157.48 | 156.01 | 99.06 | |
| 176.81 | 173.20 | 97.29 | 1.02 | |
| 193.07 | 191.14 | 99.00 | ||
