Abstract
The state-of-the-art and possibilities offered by derivative spectrophotometry in the field of pharmaceutical analysis during the period 2008 – 2012 are reviewed. This paper draws attention to the fact that derivative treatment continues to be a promising tool for analysis of spectra composed of unresolved bands as it provides selective, validated, simple and cost effective analytical methods.
Keywords: Derivative spectrophotometry, wavelet transform, pharmaceutical analysis, multicomponent mixture; chemometrics.