Mathematically Processed UV Spectroscopic Method for Quantification of Chlorthalidone and Azelnidipine in Bulk and Formulation: Evaluation of Greenness and Whiteness

Figure 5

(a) Zero-order spectra of CTL (1–15 μg/mL). (b) Zero-order spectra of AZE (1–15 μg/mL). (c) Comparison of zero-order spectra of pure CTL (red) and mixture (blue). (d) Comparison of zero-order spectra of pure AZE (red) and mixture (blue).

(a)

(b)

(c)

(d)