The SFS-Go™ is a compact scanning spectrometer designed to measure the Spectral Fluorescence Signature (SFS) of liquid, powder and solid samples. The SFS is an excitation emission matrix of special intensity of a sample with filtered out elastic (Rayleigh) scattering. The SFS-Go is optically designed as a mostly-reflection spectrometer to operate in a wide spectral range with minimal chromatic aberrations.
The device has 2 configurations and can be used:
- with short optical fibers to the optical cell unit to measure 90-degreefluorescence scheme with a small quartz cuvette for holding the liquid sample (~4ml)
- with long optical fibers to the measurement fiber probe, which enables measuring solid and powder samples or basically any flat surface
The SFS-Go™ can be used in a large variety of applications, providing the qualitative and quantitative analysis of the organic constituents in liquid, powder and solid samples, including the PAH, oils, lubricants, phenols, organic chemicals, etc., as well as living biomaterials (plants, bacteria, viruses, spores, etc.).
SFS-Go™ can work as a quick screening tool in an industrial environment, especially to reduce the number of routine and time-consuming analyses, giving quick qualitative and quantitative information about the changes in the oil or other chemical substance under investigation. The principle merits of this technique are its high sensitivity, selectivity and simplicity of the operating procedure
With SFS-Go™ comes a PC application which is described below.
SFS-Go Analyzer Technical specification
| Accuracy | Better than 10% |
| Response time, minimal | 20 sec (full SFS scan) |
| Spectral range | 220-670 nm excitation, 230-680 nm emission |
| Light source | Pulsed Xenon lamp, 20 Watt |
| Spectral unit | scanning excitation/emission monochromators |
| Detector type | Photo Multiplier Tube |
| Sample cell | standard cuvette fiber block or handle-block fiber |
| Cell volume | ~4ml, 10mm x 10 mm x 44mm internal dimensions |
| Control unit | Built-in processor controller |
| PC connection and remote control | WiFi / Ethernet |
| Device calibration | Automatic, only reference-channel measurement |
| Power consumption | 40 W |
| Voltage | 100-240V AC, 50-60Hz |
| Dimensions (L × W × H) | 30 × 23 × 19 cm |
| Weight | 5 kg |
SFS-Go application
SFS-App
SFS-App is an interactive software designed to work with the SFS method, realised in the SFS-Go analyser. In addition, it supports importing of compatible data from other sources such as H2B Spectral.
The application features powerful visualisation and multiple post-processing tools to enhance user experience and streamline the research process. The data can be later exported to common file formats (CSV, XLS, HDF5, PNG) to enable further processing and analysis with external tools if needed.
With a flexible database configuration, users can separate independent projects into a desired structure.
Features
| Use your own presets to measure the area of interest and balance speed with resolution. |
| Observe how a sample changes over time with the help of automatic, periodic measurements. |
| Display SFSs as a colour-coded matrix of fluorescence intensity in coordinates of the excitation/emission wavelength with linear slices. |
| Compare the measurements visually or with the help of a set of mathematical functions. |
| Compare spectra measured with different gain values by utilising gain normalisation. |
| Plot how the signal intensity changes over time at the points of interest. |
| Use different filtering algorithms to further improve signal clarity. |
| Easily manage measurements between different databases and projects. |
| Import or export to common file formats (CSV, XLS, HDF5, PNG) |
| Big-button tablet mode. |
| Cross-platform compatible: full support of Microsoft Windows OS and multiple Linux distributions. |
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