Table 3 Recovery data for the accuracy of the HPLC method
Excess of eugenol added (%) | Concentration of sample (?g?mL ?1) | Theoretical concentration of spiked sample (?g?mL ?1) | Concentration of spiked sample???SD (?g?mL -1) (n?=?3) | Recovery???SD (%) | %RSD |
|---|---|---|---|---|---|
50 | 100 | 150 | 149.41???1.87 | 99.60???1.24 | 1.25 |
100 | 100 | 200 | 202.15???1.36 | 101.07???0.68 | 0.67 |
150 | 100 | 250 | 252.01???1.82 | 100.80???0.73 | 0.72 |