What are the more professional GasChromatographs on the market?

The main features are the use of photons to achieve sample ionization without radioactive sources; high sensitivity, low detection limit, and wide linear range; the instrument is light in weight and flexible, especially suitable for on-site analysis and emergency detection of environmental pollution accidents; it does not require hydrogen and combustion-supporting gases and high-purity nitrogen, using only air as a carrier gas; non-destructive detection, safe and reliable; analysis of organic volatiles in water, without purge-trap device, headspace sampling direct sampling detection; no chemical pretreatment, Concentration, enrichment, adsorption-thermal desorption; direct sample injection analysis, the results are accurate and reliable; the chromatographic workstation composed of data collector, notebook computer and corresponding software is used for data collection, analysis, calculation, display and storage.