Figure 5.

Investigation with Raman spectroscopy: (A) Comparing raw Mel and aqueous dispersion of Mel- and PVA-containing dispersions, (a) spectrum of raw Mel, (b) spectrum of aqueous 1% Mel-containing dispersion without PVA, (c) spectrum of dispersion containing 1% Mel and 0.25% PVA, (d) spectrum of dispersion containing 1% Mel and 0.50% PVA, (e) spectrum of dispersion containing 1% Mel and 0.75% PVA. (B) Chemical mapping of Mel-containing dispersion (1% Mel and 0.50% PVA) and chemical mapping of its dried form profiled to peak in 2,437 cm⁻¹.

Abbreviations: Mel, meloxicam; PVA, poly(vinyl alcohol).