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Table 1 Ratios of the derivative modes at the specified wavelengths for VP

From: Eco-friendly analytical methods for the determination of compounds with disparate spectral overlapping: application to antiviral formulation of sofosbuvir and velpatasvir

Compound Conc. range μg/mL Ratio Ratio result
VP 4 D1 273/D1 299 0.585
8 0.575
10 0.596
12 0.599
16 0.599
20 0.584
  Mean ± RSD% 0.589 ± 1.68
VP 4 D1 273/D1 355 0.524
8 0.511
10 0.505
12 0.529
16 0.509
20 0.507
  Mean ± RSD% 0.514 ± 1.88
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