... , acetaldehyde)5. Dissolved Gas (hydrogen, methane, ethane, ethylene, acetylene, carbon monoxide, carbon dioxide)6. Petrochemical Testing and Fine Chemicals (crude oil, gasoline, essence ... Accessories TCD (with power) FPD NPD FIDECDTop air sampler Gas generator of nitrogen, hydrogen,air & Gas purifierPacked columnsCapillary columns Chromatograph workstationSeptumLiner ...