Bruker Vertex 70 Step-Scan FTIR

chemistrybrukervertex70

Advanced Time-Resolved & Modulation Spectroscopy

The Bruker Vertex 70 is a research-grade spectrometer that goes beyond routine chemical identification. Equipped with Step-Scan technology, it is specifically configured for the study of dynamic processes and fast reproducible kinetics. This instrument allows the CPS to investigate the "life cycle" of a photochemical reaction, from the initial excitation to the final product.

The Step-Scan Advantage:

  • Nanosecond Time Resolution: Unlike traditional "Continuous Scan" FTIR, Step-Scan allows for the monitoring of ultra-fast events. By holding the interferometer mirror at discrete positions, we can capture spectral changes with a temporal resolution down to the low nanosecond range.

  • Phase-Modulated Spectroscopy: This mode is essential for studying phenomena that respond to external periodic perturbations, such as Photoacoustic Spectroscopy (PAS) or the behavior of liquid crystals under an alternating electric field.

  • Broad Spectral Versatility: The Vertex 70 covers the Far-IR through the Visible range ($30 \text{ cm}^{-1}$ to $25,000 \text{ cm}^{-1}$), allowing for the comprehensive analysis of organic, inorganic, and metal-organic frameworks (MOFs).

Key Research Applications at CPS:

  • Photochemistry & Laser Studies: Characterizing pulsed laser emissions and monitoring photolytically generated chemical intermediates.

  • Polymer Dynamics: Utilizing 2D/3D FTIR correlation spectroscopy to observe rheo-optical changes in polymer films under mechanical stress.

  • Catalysis & Reaction Monitoring: Tracking the evolution of functional groups and intermediates in real-time to optimize catalytic pathways.

  • Advanced Material Science: Investigating depth-profiling and surface orientations using a variety of accessories, including ATR, DRIFTS, and Grazing Angle Specular Reflectance.

Technical Highlights:

  • Fully Digital Signal Processing: Utilizing high-speed 24-bit dynamic range ADCs for superior signal-to-noise ratios.

  • BRAIN (Bruker Artificial Intelligence Network): Automatic recognition of sampling accessories and optical components ensures rapid setup and validated results.

  • RockSolid™ Interferometer: Permanently aligned optics provide the high stability required for long-duration time-resolved experiments.

Updated: 04/24/2026 02:58PM