title: [Determinaion of artificial synthetic pigment in the drug by reflection spectrophotometry].
abstract: Solid phase spectrophotometry is a new, simple, fast and sensitive trace analytical method. In this report, it is presented a method that the polyamide was used for the absorbence and the reflectances absorbances were measured directly with remodelled the colorimetric cell. Not only the trace inorganic ion can be analysed by the solid phase method, but also the artificial synthetic pigment in the drug can be determined, the results are satisfied.
authors.affiliation: Department of Chemistry, Beijing Normal University, 100875 Beijing.
authors.forename: Y
authors.initials: Y
authors.lastname: Song
authors.forename: J
authors.initials: J
authors.lastname: Xu
authors.forename: C
authors.initials: C
authors.lastname: Bing
authors.forename: Y
authors.initials: Y
authors.lastname: Ren
mesh_terms: D004396:Coloring Agents / Q000032:analysis* / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D009757:Nylons / Q000737:chemistry; D004364:Pharmaceutical Preparations / Q000737:chemistry*; D013053:Spectrophotometry; D013997:Time Factors
chemical_list: D004396:Coloring Agents; D009757:Nylons; D004364:Pharmaceutical Preparations