title: [Tocopherol Acetate Reference Standard (Control 971) of National Institute of Health Sciences].
abstract: The raw material of tocopherol acetate was examined for the preparation of the "Tocopherol Acetate Reference Standard (Control 971)". Analytical data obtained were as follows: infrared spectrum, the same as that of the Tocopherol Acetate Reference Standard (Control 941); specific absorbance, E1 cm 1% (284 nm) = 43.0; thin-layer chromatography, no impurities were detected until 50.0 micrograms of the loaded raw material; high-performance liquid chromatography (HPLC), one impurity was detected and the amount was estimated to be about 0.68%; assay by HPLC, 100.2%. Based on the above results, the raw material was authorized as the Tocopherol Acetate Reference Standard (Control 971) of National Institute of Health Sciences.
authors: A
authors: A
authors: Kitajima
authors: M
authors: M
authors: Iwata
authors: K
authors: K
authors: Maekawa
authors: H
authors: H
authors: Saito
authors: T
authors: T
authors: Tanimoto
authors: S
authors: S
authors: Okada
mesh_terms: D006077:Government Agencies; D007564:Japan; D012015:Reference Standards; D024505:Tocopherols; D014810:Vitamin E / Q000031:analogs & derivatives* / Q000032:analysis / Q000592:standards; D024502:alpha-Tocopherol / Q000031:analogs & derivatives*
chemical_list: D014810:Vitamin E; D024502:alpha-Tocopherol; D024505:Tocopherols