title: THE INFLUENCE OF SPECTRAL SLIT WIDTH ON THE ABSORPTION OF VISIBLE OR ULTRA-VIOLET LIGHT BY PHARMACOPOEIAL SUBSTANCES.
mesh_terms: D002626:Chemistry, Pharmaceutical; D008027:Light; D010604:Pharmacy; D012106:Research; D013053:Spectrophotometry; D032413:Viola
keywords: CHEMISTRY, PHARMACEUTICAL; EXPERIMENTAL LAB STUDY; SPECTROPHOTOMETRY