title: Colorimetric determination of thiamine propyl disulphide and thiamine disulphide in their respective pharmaceutical preparations.
mesh_terms: D000042:Absorption; D002214:Capsules; D003124:Colorimetry / Q000379:methods; D004177:Dipyrone / Q000302:isolation & purification; D004220:Disulfides / Q000032:analysis; D012256:Riboflavin / Q000302:isolation & purification; D012997:Solvents; D013607:Tablets; D013831:Thiamine / Q000031:analogs & derivatives* / Q000032:analysis
chemical_list: D002214:Capsules; D004220:Disulfides; D012997:Solvents; D013607:Tablets; D004177:Dipyrone; D012256:Riboflavin; C013293:thiamine disulfide; D013831:Thiamine