elution time for vitamin e alcohol was 7.98 min ( standard deviation ( sd ) 0.06 ) using a partisil-10 pac column and an isocratic mobile phase of hexane -- dichloromethane -- isopropanol ( 70 + 30 + 0.2 ) with a flow rate of 1 ml/min , and detection at 292 nm and 0.01 aufs by a variable uv monitor .
C0001962
alcohol
C0022237
isopropanol