PTR-QMS 3500 Proton Transfer Reaction Mass Spectrometry Introduction
Proton transfer reaction mass spectrometry (PTR-MS) is a proton-transferred charged particle that undergoes a proton transfer reaction between a component to be tested and reagent ions under specific conditions, and is separated and detected after entering the mass analyzer at the next stage. The instrument is mainly used for the detection of volatile organic compounds (VOCs), which can be real-time online continuous monitoring, continuous quantitative measurement such as benzene series, most alkanes, olefins, ethers, lipids and other volatile organic compounds.
Application areas:
Trace detection of VOCs in the atmospheric environment, including biomass volatile organic compounds, volatile organic compounds produced by human activities, such as urban road motor vehicle exhaust monitoring, air quality difference analysis in different regions and different seasons;
Food flavor monitoring and sensory evaluation, such as analysis of flavor components of coffee and tea;
In the medical field, the pathogenic research of human exhaled breath, such as the monitoring and analysis of exhaled breath markers of smokers and cancer patients;
Analysis and monitoring of explosives in the field of public safety, such as rapid monitoring of trace amounts of TNT and narcotics;
Monitoring of chemical warfare agents and toxic chemicals in the field of military science. Features
Low-pressure micro-glow discharge ion source, high electron density, high efficiency, anti-pollution and easy maintenance;
High-quality quadrupole mass spectrometry system with stable and reliable data;
The detection limit can reach dozens of pptv;
Quick online real-time analysis of VOCs;
High-efficiency soft ionization technology, reagent ion purity can reach more than 99.8%;
Quick and simple sample analysis without sample concentration treatment;
Choose two methods of fixed quality monitoring and full range scanning monitoring;
Full-parameter automatic tuning program to quickly optimize instrument parameters;
Quick vacuum valve switching, without changing the reaction reagent;
Multifunctional embedded control system is safe and reliable;
Meet 4 ~ 20ma, MODBUS protocol remote data transmission;
The structure is compact and the installation is reliable. It can be used for vehicle-mounted installation, which is convenient for field monitoring. Technical parameters
Quality range: 1.5-600amu
Resolution: unit mass resolution
Response time: 100ms
Detection limit: 100 pptv (benzene)
Linear range: 50 pptv ～ 10ppmv
Adjustable flow rate: 80 ～ 800sccm
Sampling system (can be customized according to different requirements): 1.0m long inert capillary with thermal insulation heating system
Heating range of sampling system: 150 ℃
Heating range of reaction chamber: 40 ～ 150 ℃
Power supply: 220 V
Dimensions (W x H x D): 48 x 54.5x 63 cm
Weight: about 100 Kg
Primary ion beam: H3O +
Other optional primary ions: other sample gas can be replaced as reaction reagents to generate different reagent ions, including NH4 +, O2 +, NO +, etc.
Introduction
Proton transfer reaction mass spectrometry (PTR-MS) is a proton-transferred charged particle that undergoes a proton transfer reaction between a component to be tested and reagent ions under specific conditions, and is separated and detected after entering the mass analyzer at the next stage. The instrument is mainly used for the detection of volatile organic compounds (VOCs), which can be real-time online continuous monitoring, continuous quantitative measurement such as benzene series, most alkanes, olefins, ethers, lipids and other volatile organic compounds.
Application areas:
Trace detection of VOCs in the atmospheric environment, including biomass volatile organic compounds, volatile organic compounds produced by human activities, such as urban road motor vehicle exhaust monitoring, air quality difference analysis in different regions and different seasons;
Food flavor monitoring and sensory evaluation, such as analysis of flavor components of coffee and tea;
In the medical field, the pathogenic research of human exhaled breath, such as the monitoring and analysis of exhaled breath markers of smokers and cancer patients;
Analysis and monitoring of explosives in the field of public safety, such as rapid monitoring of trace amounts of TNT and narcotics;
Monitoring of chemical warfare agents and toxic chemicals in the field of military science.
