... ample injectionAutomatic selection module of many sample flow pathsDesign of Explosion-proof armor heatingIntegration module design with multi-column and multi-valve ... takes sample into analytical column DC200, before components flowing out, switch valve 1 from OFF to ON, C6+ was flow back ... out, O2, N2, CH4, CO flow into chromatographic column 13X, switch the valve V3 from OFF to ON. Components CO2 and ...