PublicationsMeasure What You Want.
APPLICATIONS Raman Targeted chemical sensing Surface contamination profiling Municiple and industrial waste water contamination Soil contamination profiling Aerosol detection Direct laser induced photoluminescence probe for wide bandgap semiconductors |
Photon Systems’ offers a wide range of accessories enabling you to build your own instrument. Select a deep UV source, use our versatile digital detector controller and then choose from an array of analyzers to zero in on exactly the phenomenon that you are interested in.
Across the Spectrum.
Analyzers are a part of a complete measurement system. They may be filter assemblies optimized for the hard to detect Raman signals or optics and column assemblies which enhance excitation and collection of that native fluorescence emitted from a UV-HPLC measurement.
Whether you're looking for the faint Raman spectrum, or doing time based measurements to compare fluorescence and phosphorescence you'll need analyzers to reject signals that you're not interested in.
- µ-Raman analyzers
- CE analyzers
- HPLC Analyzers
CE and HPLC Analyzers from FlowGene
The 224nm detector was installed in the PACE MDQ using the Flowgene Detector cell, the software and the acquisition card developed by Photon Systems with the UV laser. As the laser is chopped and the data acquisition is synchronized using a gated box car integration system with each laser pulse.
PHOTO Right : FLOWGENE 224 nm LIF DETECTOR
Step pressured injections of different products were used to optimize the different parameters of the laser and of the acquisition card.
To avoid the capillary emission, we use a 335,1 nm band pass filter (width : 36,2 nm). It was the best filter we had to perform the measurements but not the best filter for this application: a complete spectroscopic study of the different emissions will be done to optimize this filter to separate the emission of the solution from the background, essentially due to the emission of the capillary and to the emission of the gel for certain products. We observe an intrinsic emission of different gels which has saturated completely the acquisition system and hidden the real emission of solutions.
The laser power is set to a few mW and the acquisition rate is limited at 3 Hz, this limitation is due to the software, the laser potentially works at 10 Hz. For future work we would recommend using this variable data rate to enhance detection detail while insuring optimum lifetime of the laser system.