“Compact spectral analyzer” – SFS-Cube™


The SFS-Cube is designed as a compact, fast scanning spectrometer to operate in laboratory and in industrial environment based on the measurement of the Spectral Fluorescence Signature (SFS) of  liquid, powder or solid samples. The measured SFS is an excitation/emission matrix of fluorescence with automatically filtered out elastic (Rayleigh) scattering of sample. The SFS-Cube is optically designed as an all-reflection spectrometer to operate in a wide UV/VIS spectral range with no chromatic aberrations.

The device has 2 configurations and can be used either:
  • with optical fibers to conduct induced light to and collect fluorescence from the opaque or solid samples including different surfaces
  • or 90-degree optical setup for fluorescence measurements of liquid samples using quartz cell.

The analyzer can be used in a large variety of spectrofluorometry applications, including the qualitative and quantitative analysis of the organic constituents in liquid, powder and solid samples, including PAH, oils, lubricants, phenol, organic chemicals, etc., as well as living materials (plants, bacteria, viruses, spores, etc.).


The principal optical layout of SFS-Cube is a front-face scheme (when using the fiber option) or 90-degree scheme (when using cuvette) for sample excitation and fluorescence measurements. Typically the detection of the substances of interest occurs in the presence of matrix effects by background surfaces or other chemicals in the measured sample. SFS technique uses several wavelengths of excitation to allow one to separate the fluorescence spectra of substances of interest from the background.

SFS-Cube™ software window

The SFS analysis is done using pattern recognition algorithms by decomposing the measured SFS and comparing the patterns with corresponding spectral data in the SFS library. Different compounds in a mixture can be recognized and quantified without separation of individual substances. 

Technical Specification

Sample pre-treatmentNot required
Response time, full SFS scan3 min
Light sourcePulsed Xenon lamp, 20 Wt
Spectral unitScanning excitation / emission monochromators
Spectral range220-650 nm excitation
220-700 nm emission
Detector typePhoto-Multiplier Tube
Sample cellStandard 4 ml quartz optical cell
Fiber-Optic probeFront-face, 1.5 m length
Remote controlWiFi
Device calibrationAutomatic, with reference-channel
Power consumption305 VA
Voltage100-240V / 50-60 Hz
Dimensions (L × W × H)23 × 30 × 19 cm
Weight7.7 kg