... toluene, xylene, TVOC, NMTHC)Natgas, Artificial Gas, Coal-Mine Gas, LPG, Mixed Gas, High Purity Gas (Ar,He,O2,N2,CO2)Food Additives ... it can be installed capillary flow, and could be installed hydrogen and air flow in different carrier gas, these separate ways can ... be adjusted independently.4.SEGC9310 gas chromatograph column with ...