On the Simultaneous Separation of 13 Kinds of Organic Solvents by Gas Chromatography

The simultaneous separation of 13 kinds of organic solvents has been carried out with Hitachi model 163 gas chromatograph equipped with a flame ionization detector, using a stainless steel column (3 mm × 4) packed with 10% silicone gum SE 30 on chromosorb W 80-l00 mesh (AW, DMCS) and as a carrier gas, nitrogen gas of flow rate of 20ml/min. The satisfactory separation has been achieved only when the column temperature first was set at 80℃ and then increased at the temperature ratio of 10℃/min immediately after benzene peak appeared. The retention time was the smallest in methyl alcohol, followed by ethyl alcohol, acetone, methyl ethyl ketone, ethyl acetate, isobutyl alcohol, benzene, methyl iso-butyl ketone, iso-butyl acetate, toluene, n-butyl acetate, iso-amyl acetate, ethylene glycol monobutyl ether, in order of retention time.