EXPEC Technology's VOCs pre-treatment platform includes sampling container cleaners, portable and fixed-point samplers, dynamic and static diluters, automatic sample injectors, and atmospheric pre-concentrators, which can handle offline and online analysis. It solves 116 kinds of factors, ozone layer depleting substances, sulfides, non-methane total hydrocarbons and other sampling and analysis problems. Meet the analysis and application needs of different fields such as environment, emergency safety, food and drug, petrochemical, industrial process, scientific research, etc.