Solgel column is a new type of the column for gas chromatography. The sample capacity of the solgel capillary column is higher than that of the conventional staticcoated and free radical crosslinked column. On the two different kinds of the columns,the injection amount was increased gradually, and the efficiency of the columns was changed accordingly. The effect of the sample amount on the efficiency clearly showed that the sample capacity of the solgel column is 2~3 times higher than that of conventi...