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. 2010 May 26;8(6):1750–1762. doi: 10.3390/md8061750

Figure 5.

Figure 5

X-ray diffraction patterns of (a) tramadol hydrochloride and (b) chitosan hydrochloride (5 mg/mL) microspheres loaded with tramadol hydrochloride (30% w/w) and crosslinked with genipin (2 mM) at 50 ºC for 5 h.