| 摘要 |
PURPOSE: Provided are an automatic flow controller for gas chromatograph, which can stably and automatically the influx flowed into column while minimizing the excess flux when flux of carrier gas is changed, and a gas chromatography analysis system comprising the same. CONSTITUTION: The automatic flow controller comprises a first flux control sensor for measuring a total flux of carrier gas; a first control valve for controlling the total flux; a pressure sensor for displaying an inner pressure of sample inlet; a second flux control sensor for measuring a purge flux; a second control valve for controlling the purge flux; a third flux control sensor and a third control valve for constantly maintaining an inner pressure displayed on the pressure sensor; and an APC(advanced pneumatic control) board for generally controlling the components, wherein the pressure displayed on the pressure sensor determines a flux flowed into the column, and value estimated by subtracting the flux flowed into the column(determined by the pressure displayed on the pressure sensor) and the purge flux from total flux is determined as division flux.
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