Table 2.
Stability studies of quercetin, kaempferol, and isorhamnetin standards under optimum ILMASEH conditions. ILMASEH conditions: microwave power 120 W, microwave time 15 min, 1:30 solid-liquid ratio, prepared with 1.5 M [HO3S(CH2)4mim]HSO4.
| Compounds | Initial concentration (mg mL−1) | Recovered concentration after ILMASEH (mg mL−1) | RSD% (n = 3) | Average recovery (%) | Recovered concentration after 7 day (mg mL−1) | RSD% (n = 3) | Average recovery (%) |
|---|---|---|---|---|---|---|---|
| Quercetin | 2.00 | 1.97 | 0.96 | 98.5 | 1.94 | 0.97 | 97.0 |
| Kaempferol | 1.50 | 1.48 | 0.97 | 99.3 | 1.39 | 0.99 | 92.7 |
| Isorhamnetin | 1.00 | 0.98 | 1.01 | 98.0 | 0.91 | 1.03 | 91.0 |