| 摘要 |
PURPOSE:To enable even a biginner to operate easily and accurately, by carrying out both sampling and precut operations by one cock operation. CONSTITUTION:At the real flow line of a cock 1, a carrier gas supplied from the first carrier gas supply line 2 flows to a precut line 6 and a measuring line 8, and a replaced sample in a measuring tube 5 is introduced to a precut column 7 and separated roughly. When components necessary to measure flow to a main column 9, the cock 1 is switched to a line as indicated by chained lines. The carrier gas from the line 2 flows to the first bent line 12 and components unnecessary for measurement remaining in the column 7 are discharged. The carrier gas from the second carrier gas supply line 3 flows to a flow line 8 through a dummy column 15, and successively the separation of components in the main column 9 and the measurement by a detector 10 are carried out. The sample sent from a sample introducing line 11 flows to the second bent line 13 and replacement of the sample to the measuring tube 5 is carried out. |
