FVS-6000 Vibrational Circular Dichroism Spectrometer

A unique design with high-sensitivity and broad wavelength range 4000-750 cm-1 .

FVS-6000 Vibrational Circular Dichroism Spectrometer

Vibrational Circular Dichroism
FVS-6000 Vibrational Circular Dichroism Spectrometer

The FVS-6000 vibrational circular dichroism spectrometer measures both conventional IR absorption and VCD, and provides easy measurement of fingerprint VCD spectra, It also has several unique features such as a measurement range extension option of 4000-750 cm-1.

Since the CD signals in the infrared region are typically one or more orders of magnitude lower than ECD signals in the UV-Visible region, high sensitivity and stability are especially important for a VCD spectrometer.

Spectra Manager™ software offers quick and easy VCD data acquisition and analysis. Theoretically calculated VCD intensities from commercially available calculation software can be plotted as simulated spectra to be compared with the experimental data for further tertiary structure analysis of molecules.

Optimized Optics

The FVS-6000 optical system uses a 28 deg interferometer to minimize polarization effects and reflective optics to eliminate artifacts caused by birefringence, resulting in very high-quality VCD data. The isolated mount of the IR light source (high intensity ceramic light source for maximum energy and a lifetime of up to ten years) and  the  thermal control of the PEM crystal offers long-term baseline stability required for long duration measurements.

Wide Spectral Range

The FVS-6000 offers  spectral measurement  across a wide spectral range from 3200-850 cm-1 as standard. Optional detectors and filters can be added to extend the range to 4000-750 cm-1, for measurement of OH and NH bands. Detectors can be easily exchanged without the need for manual alignment,  and optical filters can be switched by a PC-controlled 6-position filter wheel.

Narrow Band Mode

The ‘narrow band mode’ allows measurements of small peaks at targeted absorption bands with high sensitivity using optional band pass filters.

VCD Auto-Alignment

The auto-alignment function optimizes the VCD optics to reduce linear anisotropy artifacts. No manual alignment is required when the detector and/or optical filters are exchanged.

Lock-in Detection with DSP

A phase-sensitive lock-in detection uses DSP (Digital Signal Processing) with a sophisticated algorithm optimized for VCD and offers dramatic improvement in the S/N ratio.


The optics, sample chamber and detector housing are all purgeable to obtain high-precision data free of interferences from environmental gases.

  • Optional accessory for auto-sampling
  • Detector with extra large LN2 dewar for up to 15 hours of operation without refill