... analysis One machine with double functions: 25 sec isolates C1~C5, 115 sec isolates C1~C8All intelligent control, automatic ignition, automatic ... , O2, CH4, CO, C2H6, CO2, H2S, C2H4, C3H8, C3H6, C4, C5, C6+ and ect. Analytical processThe analytical system consists of a ten ... components flowing out, switch valve 1 from OFF to ON, C6+ was flow back to TCD, examined. Components O2, N2, CH4 ...