予混カラムを用いた易気化性固定相液体カラムの安定化(ノート)

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概要

• 論文の詳細を見る

• It is often necessary that gas chromatographic columns are operated at such a high temperature as the use of them which is almost limited due to the high vapor pressure of the stationary liquid phase. In such cases, the stability of the retention volumes and of the separations are impaired during an operation for a long time by the decrease of the amount of the stationary liquid phase (bleeding). In order to reduce this difficulty, the GC which connected with a pre-mixed column in front of the column as shown in Figure 1 was designed. The carrier gas was saturated with the stationary liquid phase in the pre-mixed column kept at the same temperature as the column, and was introduced into the column.<BR>The efficiency of the pre-mixed column, η, which is the ratio of changes in the retention times when the operation is conducted without and with pre-mixed column was derived theoretically as given in equation (6). The experimental results of isopropyl benzene of D. O. P. column at 160°C supported these considerations.

• 社団法人 日本分析化学会の論文

著者

• 岸本 賢一

  株式会社柳本製作所

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• 予混カラムを用いた易気化性固定相液体カラムの安定化(ノート)

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