Table 5 Analysis of commercial dosage form using the proposed chemometric methods and their statistical comparison with the reported method

Reported methods

100.55 ± 1.25

101.47 ± 1.42

100.79 ± 0.84

100.23 ± 0.59

Ratio subtraction

100.34 ± 0.83

(t = 0.31, F = 2.27)^b

100.47 ± 0.86

(t = 1.35, F = 2.73)^b

100.84 ± 0.76

(t = 0.10, F = 1.22)^b

100.35 ± 0.28

(t = 0.41, F = 4.44)^b

Dual wavelength

101.74 ± 0.84

(t = 1.77, F = 2.21)^b

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100.43 ± 1.16

(t = 0.56, F = 1.91)^b

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Absorptivity factor

---

99.70 ± 0.91

(t = 2.35, F = 2.43)^b

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101.04 ± 0.84

(t = 1.76, F = 2.03)^b