Our Technology

• Real-Time Analysis
• On-Line IR Detection
• No Sample Transfer or Handling
• Runs Stand-alone or in Parallel with current MS systems

The Spectra Analysis DiscovIR systems provide the full mid-IR spectrum of each peak at up to 1000 times more sensitivity than other IR detectors, making GC-IR and LC-IR practical for numerous applications where previous methods did not provide useful information. The data is collected in Real-Time and completely automatically – no transfers or sample handling required.

As peaks elute from the column they are deposited in a thin film onto an IR-transparent disc. An infrared beam then passes through the film and the absorbance spectrum is collected automatically. Since the deposition occurs under high vacuum and at low temperature, the peaks are secure and immobilized for further analysis if desired.

Why MicroDeposition Improves Analysis

Concentrates Analytes in Minimal Area

• Cryogenic temperature control of the Sample Disc reduces the area of the deposited analyte to a microscopic dot. This results in a thicker sample layer and therefore Higher Sensitivity of the absorbance spectrum

Immobilizes Entire Run

• Since the entire chromatographic run is applied to the Sample Disc, the resolution of the separation is not lost as in some collection systems. Additionally, the entire run is available to be scanned again to investigate subtle features or improve signal-to-noise. The speed of the rotating Sample Disc can be adjusted to match concentration of the deposited sample.

Solid-phase Spectra

• Because the samples have been enriched by chromatography before detection, the absorbance spectra generated by the DiscovIR™ are of very high quality. Even volatile compounds are captured in the solid phase and yield higher resolution data than the corresponding gas-phase spectrum.