RP-HPLC and UV Spectrophotometric Analysis of Paracetamol, Ibuprofen, and Caffeine in Solid Pharmaceutical Dosage Forms by Derivative, Fourier, and Wavelet Transforms: A Comparison Study

Figure 3

Using derivative transform for determination of PA, IB, and CA: single divisors (a, b), double divisors (c–e), and successive divisors (f, g).

(a)

(b)

(c)

(d)

(e)

(f)

(g)