Table 5 Comparison of the proposed method for SF and VP determination with other reported methods: Determination of SF in presence of VP
Determination of SF in presence of VP | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Point of comparison | Proposed method | Reference (Kamal et al., 2019) | Reference (Rezk et al., 2019b) | Reference (Attia et al., 2018) | ||||||
Determination method | Derivative ratio (2DD), delta absorbance (ΔA, Δ D1), and derivative compensation | First derivative of ratio spectra (1 DD) and ratio difference spectrophotometry (RD) | Dual wavelength (DW), ratio subtraction (RS), ratio difference (RD), and first derivative of ratio spectra method (1 DD) | First derivative of SF spectra, calculated by Savitsky–Golay filters, at 251 nm | ||||||
Linearity range (μg/mL) | 5-50 | 5-50 | 5-90 | 4–40 | ||||||
LOD (μg/mL) | (2DD) 0.471 | (ΔA) 0.318 | (Δ D1) 0.773 | (1 DD) 0.150 | (RD) 0.106 | (DW) 1.21 | (RS) 1.32 | (RD) 1.19 | (1 DD) 1.38 | 0.913 |
LOQ (μg/mL) | (2DD) 1.568 | (ΔA) 1.062 | (Δ D1) 2.578 | (1 DD) 0.454 | (RD) 0.322 | (DW) 3.67 | (RS) 4.01 | (RD) 3.61 | (1 DD) 4.17 | 2.767 |
Applications | Synthetic mixture, dosage form | Determination of drugs in dosage form | Laboratory prepared mixtures and dosage form | Determination of drugs in pharmaceutical dosage form | ||||||