MATRIX-MG Series Automated High-Performance Gas Analyzers

Importance of the Topic

The MATRIX-MG series addresses the growing need for highly sensitive, fully automated gas analysis across multiple industries. Real-time monitoring of gas concentrations with ppb-level detection and resistance to environmental interferences is critical for process optimization, safety, environmental compliance, and research applications.

Objectives and Overview

This summary reviews the design, capabilities, and applications of three automated FT-IR gas analyzers (MATRIX-MG01, MG2, MG5). It highlights their nonlinear fitting approach for concentration retrieval, compensation for interferents, dynamic range, and performance in industrial and environmental settings.

Instrumentation Used

• Analyzer Models: MG01 (0.1 m path length), MG2 (2 m), MG5 (5 m); optional 26 m cell for trace analysis
• Spectrometer Core: RockSolid™ permanently aligned interferometer
• Detector: Liquid-nitrogen-cooled MCT (alternatives: cryocooled MCT, DTGS)
• Gas Cell: Temperature controlled up to 191 °C, nickel-plated multi-reflection design, gold mirrors for corrosive gases
• Sensors: Integrated pressure and temperature measurement for in-situ correction
• Software: OPUS GA for real-time spectrum acquisition, nonlinear library fitting, automatic identification of >400 compounds without individual calibrations
• Interfaces: 4-20 mA, PROFIBUS, Modbus, and other industrial communication standards

Main Results and Discussion

The MATRIX-MG analyzers deliver:

• Detection Range: From low ppb up to 100 % concentration of target gases
• Spectral Performance: 4800–750 cm⁻¹ range; standard resolution better than 1 cm⁻¹, optional <0.5 cm⁻¹
• Acquisition Speed: Up to 5 spectra/s at 0.5 cm⁻¹, 30 spectra/s at 4 cm⁻¹; optional fast gas exchange for dynamic processes
• Data Analysis: Automated nonlinear fitting compensates for overlapping absorptions (e.g., water vapor) and variable pressure/temperature
• Robustness: Rugged housing tolerates industrial environments; rapid gas exchange and heated transfer lines minimize condensation and adsorption effects

Benefits and Practical Applications

The system’s flexibility and performance suit a wide array of tasks:

• Process Control and Surveillance: Continuous monitoring in chemical production, petrochemical, food processing
• Emissions Monitoring: Chimney stacks, automotive exhaust, biogas plants
• Gas Purity and Impurity Analysis: Detection of trace contaminants in product streams
• Scientific Research: Laboratory studies of reaction kinetics, environmental field studies with portable setups

Future Trends and Application Possibilities

Advancements poised to expand FT-IR gas analysis impact include:

• Enhanced Libraries: Integration of AI-driven spectral deconvolution to extend compound coverage and reduce analysis time
• Remote and Imaging Configurations: Coupling with open-path sensors and hyperspectral cameras for spatial mapping of emissions
• Integration with Industry 4.0: Real-time data analytics, predictive maintenance, and feedback loops in automated production lines
• Portable Solutions: Miniaturized, battery-powered units for field deployment in environmental and emergency response scenarios

Conclusion

The MATRIX-MG series combines high sensitivity, broad dynamic range, and full automation to deliver precise gas concentration measurements without individual calibrations. Its robust design and flexible options make it a versatile tool for industrial, environmental, and research applications requiring reliable, real-time gas analysis.

Reference

Bruker Optics. MATRIX-MG Series Automated High-Performance Gas Analyzers. Application Note BOPT-4000892-01, 2017.