title: Infrared spectroscopy using attenuated total reflection.
mesh_terms: D000493:Allopurinol / Q000032:analysis; D000655:Amodiaquine / Q000032:analysis; D008722:Methods; D010404:Penicillin V / Q000032:analysis; D011208:Powders / Q000032:analysis*; D013055:Spectrophotometry, Infrared; D013329:Structure-Activity Relationship; D013607:Tablets / Q000032:analysis
chemical_list: D011208:Powders; D013607:Tablets; D000655:Amodiaquine; D000493:Allopurinol; D010404:Penicillin V