Figure 6
X-ray powder diffraction patterns of (a) chitosan, (b) sodium diclofenac, (c) the diclofenac-containing chitosan matrix at the weight ratio 1:1, (d) the diclofenac-containing chitosan matrix at the weight ratio 5:1 and (e) diclofenac sodium pentahydrate generated from single-crystal data (Muangsin et al., 2002). |