title: [ANALYTIC STUDY, BY THIN-LAYER CHROMATOGRAPHY, OF 4 PRESERVING AGENTS IN GALENIC PREPARATIONS].
mesh_terms: D001565:Benzoates; D002623:Chemistry Techniques, Analytical; D002845:Chromatography; D002855:Chromatography, Thin Layer; D003061:Codeine; D004340:Drug Contamination; D008747:Methylcellulose; D013012:Sorbitol; D013053:Spectrophotometry
chemical_list: D001565:Benzoates; D013012:Sorbitol; D008747:Methylcellulose; D003061:Codeine
keywords: BENZOATES; CHEMISTRY, ANALYTICAL; CHROMATOGRAPHY; CODEINE; DRUG ADULTERATION; METHYLCELLULOSE; SORBITOL; SPECTROPHOTOMETRY
vernacular_title: ETUDE ANALYTIQUE, PAR CHROMATOGRAPHIE EN COUCHE MINCE, DE QUATRE AGENTS CONSERVATEURS DANS QUELQUES PR'EPARATIONS GAL'ENIQUES.