[Tocopherol reference standard (Control 911) of the National Institute of Hygienic Sciences].
The raw material for tocopherol was tested for preparation of the "Tocopherol Reference Standard (Control 911)". Analytical data obtained were as follows: infrared spectrum, same as Tocopherol Reference Standard (Control 881); absorptivity, E1%1cm (292nm) = 75.5; thin-layer chromatography, no impurities were detected up to 50.0 micrograms; high performance liquid chromatography (HPLC), four impurities were detected; assay, 100.7% by HPLC. Based on the above results, the raw material was authorized as the Japanese Pharmacopoeia Standard (Control 911).
Izumi
W
W
Murai
M
M
Komatsu
H
H
Ishimitsu
S
S
Okada
S
S
D002851:Chromatography, High Pressure Liquid; D002855:Chromatography, Thin Layer; D006077:Government Agencies; D006920:Hygiene; D007564:Japan; D010602:Pharmacopoeias as Topic; D013055:Spectrophotometry, Infrared; D014810:Vitamin E / Q000302:isolation & purification / Q000592:standards*
D014810:Vitamin E