抄録
A method of gas chromatographic separation for the identification of vitamin D_2,5,6-trans-vitamin D_2,isocalciferol (isovitamin D_2), isotachysterol_2,tachysterol_2,lumisterol_2 and ergosterol using SE-30 as a stational phase was investigated. Lumisterol_2 from thermal cyclization products of vitamin D_2 (pyro- and isopyrocalciferol), formed during gas chromatography, 5,6-trans-vitamin D_2 from isocalciferol and isotachysterol_2 from tachysterol_2 were not separated by the gas chromatography. Therefore, the identification of these compounds was impossible by the gas chromatography only.
