... xylene, TVOC,NMTHC)2. Natgas, Artificial Gas, Coal-Mine Gas, LPG, Mixed Gas, High Purity Gas (Ar,He,O2,N2,CO2)3. ... (methanol, ethanol, ethyl acetate, ethyl butyrate, acetaldehyde)5. Dissolved Gas (hydrogen, methane, ethane, ethylene, acetylene, carbon monoxide, carbon ... it will be automatically close the temperature controller.7. GC9310 gas chromatograph have been designed using backpressure control ...