title: [Tocopherol Reference Standard (Control 001) of National Institute of Health Sciences].
abstract: The raw material of tocopherol was tested for the preparation of "Tocopherol Reference Standard (Control 991)". Analytical data obtained were: IR spectrum, same as the Tocopherol Reference Standard (Control 941); specific absorbance, E/cm% (292 nm) = 72.9; thin-layer chromatography, no impurities were detected until 50.0 micrograms; high-performance liquid chromatography (HPLC), trace amounts of five impurities were detected and the total amount was estimated to be less than 1.4%; assay by HPLC, 99.9%. Based on the above results, the raw material was authorized as the Japanese Pharmacopoeia Standard (Control 991).
authors.forename: M
authors.initials: M
authors.lastname: Iwata
authors.forename: T
authors.initials: T
authors.lastname: Koide
authors.forename: K
authors.initials: K
authors.lastname: Maekawa
authors.forename: H
authors.initials: H
authors.lastname: Saito
authors.forename: T
authors.initials: T
authors.lastname: Tanimoto
authors.forename: S
authors.initials: S
authors.lastname: Okada
mesh_terms: D002851:Chromatography, High Pressure Liquid; D002855:Chromatography, Thin Layer; D006077:Government Agencies; D007564:Japan; D010602:Pharmacopoeias as Topic; D012015:Reference Standards; D024505:Tocopherols / Q000032:analysis / Q000592:standards*
chemical_list: D024505:Tocopherols