In the precise control system of air pollution, the physicochemical properties and source analysis of aerosol particles are the core links of source control. The ZYPMMS201 single particle aerosol mass spectrometer, as a high-precision monitoring device, has the ability to measure the real-time particle size and chemical composition of individual aerosol particles, providing key technical support for ecological environment monitoring work. This instrument relies on the technological advantages of rapid analysis and dynamic monitoring, effectively avoiding human errors in traditional sampling and analysis processes. Combined with the characteristics of vehicle mounted mobile deployment, it can achieve flexible aerosol source analysis in the target area, providing scientific data basis for the formulation of environmental governance policies.
The high-precision monitoring capability of the instrument relies on mature technical principles, with an effective monitoring particle size range of 200-2500nm. When aerosol particles pass through the etched laser focusing area, the system uses aerodynamic particle size data as a timing reference and calibration parameter; Laser completes the desorption and ionization process of particles in a bipolar time-of-flight mass spectrometer, and distinguishes the mass to charge ratio based on the difference in ion time-of-flight. The single particle analysis rate of this instrument can reach 10 per second, and bipolar mass spectrometry information is obtained through an independent positive and negative ion detector, thereby achieving deep exploration of particle physicochemical properties and pollution sources. The operation control and data acquisition of the entire system are completed through dedicated software for the Windows operating system.
Strict technical parameters provide guarantees for instrument performance: particle size measurement deviation ≤ 5%, mass spectrometry resolution>800FWHM, quality detection range covering 1-600amu, detection accuracy controlled within ± 0.5amu, ensuring the accuracy and reliability of monitoring data; The detection rate of aerosol particles can reach up to 13 particles per second, and the total number of measured particles under 24-hour continuous monitoring conditions is ≥ 10000, which can meet the technical requirements of large sample statistical analysis.
The instrument has good environmental adaptability, with a power supply requirement of AC220V (± 10%), 50Hz (± 10%), and reliable grounding must be ensured; It can operate stably under the conditions of ambient temperature of 5-35 ℃, relative humidity of 20-80%, and atmospheric pressure of 86-106kPa. The use environment should avoid strong electromagnetic field interference, severe vibration, and corrosive gas erosion. This instrument supports both in vehicle and indoor installation modes, making it suitable for long-term monitoring at fixed monitoring points and meeting the mobile tracking needs of pollution sources, adapting to diverse monitoring scenarios.
The ZYPMMS201 single particle aerosol mass spectrometer, with its high resolution and sensitivity, effectively compensates for the limitations of traditional monitoring methods and achieves synchronous and accurate capture of aerosol particle size and chemical composition. Through its efficient source resolution capability, monitoring data can be transformed into precise basis for pollution control, building a technical bridge between pollution monitoring and source control, and providing important technological support for the continuous improvement of atmospheric environmental quality.