Jinan Fu's Machinery Co

The carrier gas volume flow rate of the capillary column of the capillary gas chromatograph is much smaller than that of the packed column. It takes a long time to flush the sample from the vaporization chamber to the chromatographic column, resulting in serious expansion of the chromatographic zone in the injector. In addition, the column capacity is small, and conventional injection methods cannot control such a small injection volume. Therefore split injection was used.
Since the volume flow rate of the carrier gas in the capillary column of the capillary gas chromatograph is very small, it suddenly decelerates after entering the detector, causing the chromatographic peak to expand. Therefore, it is necessary to install an auxiliary makeup device between the capillary column outlet and the detector to make the components flow through the detector quickly.