Spectra Analysis – Solid-phase Deposition FTIR – DISCOVIR-GC™

Boost Efficiency of Your Current Compound ID

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.

Micro-deposition Improves Analysis

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.

Drug exhibits have become more challenging over the years due to an increase in complex synthetic substances with many positional isomer and diastereomer possibilities. With the DiscovIR-GC® from Spectra Analysis Instruments, forensic and law enforcement labs can now easily and rapidly identify designer drugs, by-products, and cutting agents with a higher level of specificity and discrimination which is unattainable through mass spectrometry alone.

Technical Specifications

System overview
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 20 hours of chromatography
Disc temperature control	-100 to –30°C; ambient to 100°C
Data station
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 Search Software included Spectra compatible with all solid phase FTIR Libraries
DiscovIR-LC configuration
GC flow rates accepted	0.1 to 5 ml/min
GC temperatures	Programmed up to 420°C

Key Features

DISCOVIR-GC™

• Micro-Deposition on Cryogenically-Cooled IR-transparent disc
• Solid phase transmission FTIR spectra with high resolution
• Runs stand-alone or in parallel with GC-MS

Key Applications

• Controlled substances
• Amphetamines
• Diastereomers
• Ephedrine/pseudoephedrine
• Trace analysis
• Fentanyl analogs
• Cathinones
• Phenethylamines