Multiple parameters are tested simultaneously, covering more than 100 conventional volatile organic compounds (including PAMS57 items, TO-15, aldehydes and ketones, etc.).

The mass spectrometer uses a quadrupole mass analyzer. The vacuum system is equipped with a high-speed molecular turbo pump. The ion detector is an electron multiplier with a high-energy conversion dynode, and the multi-lens inert electron ionization source with a double filament design produces a stable and efficient ion beam. The electrical structure adopts an optimized RF/DC electric field control method to achieve unit resolution of organic ions within the test mass range and has excellent quality stability. The analyzer control software has functions such as full scan monitoring, selected ion monitoring, library retrieval, automatic qualitative and quantitative, automatic mass correction, and batch data processing.

The pre-concentrator uses deep electronic refrigeration technology, a first-stage cold trap to remove water, and a second-stage cold trap composite filler to enrich and concentrate VOCs, achieving simultaneous enrichment of high and low boiling point components. The low-temperature water removal module can effectively remove water from the sample and increase the service life of the chromatographic column and detector. High and low carbon component samples are diverted to different composite filler tubes for low-temperature enrichment, and low carbon components are diverted to the FID detector for detection via a dedicated chromatographic column.

The system software has functions such as real-time spectrum acquisition, real-time status monitoring, historical data query, multi-parameter concentration trend display and log alarm recording, which can easily realize data management, online control, remote maintenance and other operations of the system.