The new Spectra Analysis DiscovIR System is the perfect solution when identifying the components in a complex mixture. Infrared spectroscopy provides each compound’s unique fingerprint, making it quick and easy to identify each peak by comparison to the extensive solid phase IR libraries. The DiscovIR system is particularly useful in identifying structural isomers, which can be a challenging area for Mass Spectrometry.
DiscovIR’s unique temperature controlled, vacuum deposition method ensures that results are accurate and reproducible. Eluted peaks are first deposited in a film onto a rotating IR-transparent disc. The disk rotates the concentrated spot into the infrared beam and the spectrum is collected.
Cryogenic temperature control of the Sample Disc minimizes the area of the deposited analyte. This produces a thicker sample layer and therefore higher sensitivity of the absorbance spectrum, generating a practical result where gas phase detectors deliver little useful information.
The entire run is available to be scanned again to investigate subtle features or improve signal-to-noise.
| Operating Principle | Direct deposition of column eluent on cryogenically-cooled ZnSe sample disc |
| Detection Method | Built-in FTIR |
| IR Detector | 0.1 x 0.1 mm MCT |
| IR Range | 4000–700 Wavenumbers |
| Resolution | 4 or 8 cm-1 |
| Data Collection | Real-time, with post-run rescan |
| Spectrum Type | Transmittance through disc and solid-phase sample |
| Disc Capacity | About 50 hours of chromatography |
| Disc Temperature Control | -100 to –30°C; ambient to 100°C |
| Unattended operation | 12 hours; Autosampler-compatible |
| Platform | Standard Desktop computer w/ Microsoft Windows™ |
| Spectroscopy Package | Thermo Galactic GRAMS/32 AITM |
| Standard Features | • Real-time and post-run data collect • Chromatographic / spectral workup • Band chromatograms for chemical classes • Ratio chromatograms for profiling trends • Alignment and tuning tools |
| Library Search | Library with 4,000 spectra of controlled substances |
| GC Flow Rates Accepted | 0.1 to 5 ml/min |
| GC Temperatures | Programmed up to 420°C |
| Sensitivity | Picogram range (e.g. |
| Chromatograph | Compatible with any GC system (user supplied) |
Do you want to know more about this system? Please contact one of our experts and they will help you find the best system for your analyses.
