Table 5 Comparison of the assessment using potentiometry of different samples and official method.
Method | Samples | [oxytrol], ppm | Recovery (%) | RSD% | |
|---|---|---|---|---|---|
Taken | Found | ||||
Potentiometry | Coca Apple Berry Pomegranate | 5.50 | 5.40 5.39 5.41 5.46 | 98.18 98.00 98.36 99.27 | 0.85 1.30 1.66 1.09 |
Official method HPLC29 | Coca Apple Berry Pomegranate | 5.50 | 5.42 5.45 5.36 5.48 | 98.54 99.09 97.45 99.64 | 0.92 1.28 1.12 0.55 |
