Research Article
HPTLC Analysis of Solanum xanthocarpum Schrad. and Wendl., a Siddha Medicinal Herb
Table 2
Data showing different parameters analyzed for the reference compounds during the present study by using HPTLC.
| Reference compound | Lupeol | Oleanolic acid | Ursolic acid | β-Sitosterol | Campesterol | Ergosterol | Withanolide B |
| Working concentration (µg/band) | 2–10 | 2–10 | 2–10 | 2–10 | 2–10 | 2–10 | 2–10 | Rf value | 0.84 | 0.47 | 0.36 | 0.64 | 0.74 | 0.90 | 0.64 | Regression equation | Y = 2653 ∗ X + 1548 | Y = 3621 ∗ X − 969.3 | Y = 924.3 ∗ X − 155.1 | Y = 1308 ∗ X + 609.7 | Y = 2554 ∗ X + 214.4 | Y = 1652 ∗ X + 348.7 | Y = 470 ∗ X + 319.4 | Correlation coefficient (r2) | 0.998 | 0.997 | 0.997 | 0.995 | 0.993 | 0.995 | 0.995 | LOD (ng) | 407 | 304 | 578 | 419 | 928 | 527 | 488 | LOQ (ng) | 1234 | 921 | 987 | 1272 | 2813 | 1598 | 1479 |
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