title: Separation and semi-quantitative determination of tetracycline degradation products in tetracycline hydrochloride powders and capsules by thin-layer chromatography.
mesh_terms: D002214:Capsules / Q000032:analysis; D002855:Chromatography, Thin Layer / Q000379:methods; D004355:Drug Stability; D011208:Powders / Q000032:analysis; D013752:Tetracycline / Q000032:analysis*; D013754:Tetracyclines / Q000032:analysis*
chemical_list: D002214:Capsules; D011208:Powders; D013754:Tetracyclines; D013752:Tetracycline