Bruker MOBILE-IR II FT-IR SPECTROMETER

Significance of the Topic

The MOBILE-IR II portable FT-IR spectrometer represents a significant advancement in field-based chemical analysis by combining true laboratory-grade performance with rugged design and ease of use. Its mobility reduces the need for sample transport, accelerates decision-making, and extends infrared spectroscopy into diverse on-site applications ranging from environmental monitoring to forensic investigations.

Objectives and Study Overview

This application note describes the design, features, and practical applications of the MOBILE-IR II. The goals are to illustrate how its compact form factor, robust construction, and user-friendly software enable rapid, accurate infrared measurements outside traditional laboratory settings and to highlight real-world scenarios where on-site FT-IR analysis offers clear advantages.

Methodology and Instrumentation

The MOBILE-IR II employs Fourier transform infrared spectroscopy using a diamond ATR interface. Core design elements include:

• RockSolid™ cube-corner interferometer for stable, wear-free performance
• Thermoelectrically cooled MCT detector for high sensitivity and rapid acquisition
• Integrated sampling options: high-pressure ATR clamp and heatable ATR trough (up to 80 °C) for diverse sample types
• Sealed optics (IP65) and robust metal housing to resist dust, humidity, and vibrations
• Rechargeable battery pack for remote operation
• Rugged tablet PC (IP65, MIL-STD-810G) running the OPUS TOUCH software with guided workflows and intuitive interface

Main Results and Discussion

Performance tests demonstrate that the MOBILE-IR II achieves:

• Spectral resolution down to 0.8 cm⁻¹ (standard 2 cm⁻¹)
• Wavenumber accuracy <0.05 cm⁻¹ and precision <0.0005 cm⁻¹
• Operational stability under high humidity (≤80% RH) and wide temperature ranges

Field examples illustrate rapid polymer identification at recycling sites, impurity detection in warehouses, on-site hazard assessment for first responders, and soil composition analysis in mining exploration. The intuitive OPUS TOUCH guides beginners through measurement steps while allowing expert users full control, and wireless or wired transfer options (Wi-Fi, Ethernet, USB) streamline data management.

Benefits and Practical Applications

Key advantages of the MOBILE-IR II include:

• Time and cost savings by eliminating sample transport delays
• Enhanced decision speed in critical scenarios (e.g., forensic incidents, quality control)
• Versatile sampling across solids, liquids, and pastes with minimal preparation
• Reliable performance in harsh environments thanks to IP65/IP67 protection and vibration damping

Applications range from polymer recycling, environmental monitoring, NGO harm-reduction events, to mobile QC in logistics and mining exploration.

Used Instrumentation

The following key components enable the MOBILE-IR II’s capabilities:

• Diamond-ATR interface (1.2 mm² contact area)
• High-pressure ATR clamp and optional heatable ATR trough
• RockSolid™ cube-corner interferometer
• TE-MCT detector (cryogen-free) with enhanced signal-to-noise ratio
• OPUS TOUCH software on rugged tablet PC

Future Trends and Potential Applications

Advancements in miniaturized detectors and AI-driven spectral interpretation promise even greater autonomy and analytical depth in the field. Emerging trends include integration with cloud-based databases for real-time remote consultation, automated contamination screening at production lines, and expanded use in environmental drones or autonomous vehicles for continuous monitoring.

Conclusion

The MOBILE-IR II sets a new standard for portable FT-IR spectroscopy by merging lab-grade analytics with field-ready durability and simplicity. Its broad application spectrum and robust design make it an invaluable tool for scientists, QC specialists, first responders, and researchers seeking rapid, reliable chemical insights on site.