Design an Ultra-low Adsorption Gas Sampling System for Ozone and Photochemical Continuous Online Monitoring Instruments

The paper discusses an ultra-low adsorption gas sampling system (UAGSS) for ozone and photochemistry continuous online monitoring instruments. To ensure sampling gas system's authenticity and timeliness, many issues such as structure design, adsorption problem, gas stay time, condensate problem, and temperature control are considered. The system composes of five parts: sampling upper tube, sampling lower tube, temperature control system, flow control system and height adjustable support. High-fidelity uniform sampling solves problems of sampling differences in ozone instruments and volatilization of components in sampling tube. Further experiment method is mentioned.