A peroxyl radical source generation and calibration system
By combining the free radical generation module and the online calibration module, the problems of inaccurate measurement and poor stability of peroxy free radical concentration in existing technologies are solved, realizing the quantitative measurement and stable generation of HO2, and meeting the needs of atmospheric chemistry research and instrument calibration.
Patent Information
- Application Number
- CN202511946502.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-23
- Publication Date
- 2026-04-07
- Estimated Expiration
- 2045-12-23
AI Technical Summary
Existing technologies struggle to accurately measure and stably generate peroxide radicals, especially in active and passive scenarios where it is difficult to precisely acquire NO2 signals. Furthermore, the lack of online calibration capabilities results in high uncertainty in radical concentration and difficulty in eliminating background interference.
The system employs a free radical generation module and an online calibration module to generate HO2 free radicals through the main photolysis cavity, and uses calibration and background channels to accurately measure the NO2 molecule concentration. Combined with a fully automatic concentration control module and a data acquisition module, it achieves absolute calibration and stable control of free radical concentration.
It enables accurate acquisition of NO2 signals under both active and passive conditions, effectively eliminates background interference, achieves quantitative measurement of HO2, improves the stability and accuracy of free radical concentration, and meets the needs of atmospheric chemistry research and instrument calibration.