A multigas FTIR analyzer, as the name suggests, is an instrument that is capable of simultaneously analyzing multiple gases using Fourier Transform Infrared (FTIR) spectroscopy. It offers the advantage of being able to detect and quantify a wide range of gas components in a single measurement, making it a powerful tool for gas analysis in various applications.
The working principle of a multigas FTIR analyzer is similar to that of a single gas FTIR analyzer. It involves the interaction of infrared light with gas molecules, leading to the absorption of specific wavelengths of light that are characteristic of the gas components present in the sample.
The key features of a multigas FTIR analyzer include:
1. Broad spectral range: Multigas FTIR analyzers are designed to cover a broad spectral range in the infrared region, typically from mid-infrared to near-infrared wavelengths. This allows for the detection and analysis of a wide variety of gas species.
2. Multiple gas cells: Multigas analyzers incorporate multiple gas cells or sample compartments to accommodate different gases simultaneously. Each gas cell is designed to interact with the infrared light and provide a path for the gas sample to pass through.
3. Interchangeable or multiplexing system: Some multigas FTIR analyzers use an interchangeable or multiplexing system that allows for the sequential analysis of different gas cells. This means that the instrument can rapidly switch between different gas cells to analyze different gases in a continuous or semi-continuous manner.
4. Data processing and analysis: The acquired spectral data from the multiple gas cells are processed using Fourier transform techniques to obtain absorption spectra for each gas component. These spectra are then analyzed using algorithms and reference spectral libraries to identify and quantify the gases present in the sample.
Multigas FTIR analyzers find applications in various fields, including environmental monitoring, industrial emissions monitoring, workplace safety, and research. They can detect and quantify a wide range of gases, including greenhouse gases, volatile organic compounds (VOCs), pollutants, combustion by-products, and industrial process gases.
One of the advantages of multigas FTIR analyzers is their ability to provide real-time or near real-time measurements, allowing for continuous monitoring and rapid response to changing gas concentrations. They can be used for both point-source measurements and area monitoring, depending on the specific instrument configuration and application requirements.
It's important to note that the performance of a multigas FTIR analyzer, including sensitivity, accuracy, and detection limits, can vary depending on factors such as the instrument design, spectral resolution, calibration procedures, and the availability of reference spectra for the gases of interest. Calibration and validation against certified standards are crucial for obtaining accurate and reliable results.
Overall, multigas FTIR analyzers offer a comprehensive solution for gas analysis by enabling simultaneous measurement of multiple gases, making them valuable tools for environmental monitoring, industrial process control, and other applications where the analysis of multiple gas components is essential.
Features
- It can measure SO2, NOX (NO, NO2), CH4, NH3, HCl, HF, CO, CO2, O2, H2O and other components at the same time, and other measurement components can be added as needed, such as SO3, N2O and various VOCs gas
- Core components, independent research and development, high maintenance efficiency and low maintenance cost
- The system is small in size, fast in preheating, easy in assembly, fast in sampling and moderate in power, and can be used for long-term onsite - analysis and application of complex working conditions
- The instrument has a built-in long optical path White cell gas chamber, the optical path is adjustable, and the detection limit can reach ppb level
- Can be used as a continuous detection emergency alternative to CEMS
- It can be used as fixed pollution source emission detection, CEMS comparison and acceptance, leakage inspection emergency monitoring,laboratory measurement analysis
- Built-in excellent measurement analysis algorithm, effectively eliminate the interference caused by strong infrared absorbing substances (H2O, CO2
Applications
1. Multi-level Environmental Monitoring Station
2. Third-party testing agency
3. Coal-fired power plants, gas-fired power plants, cement plants, steel plants, waste incineration and other industrial occasions
4. Environmental emergency monitoring
5. Laboratory gas detection and analysis, etc.
