Chromajet DS20 automatic derivatization system
Both economical and environmentally friendly, the Chromajet DS20 automatic derivatization system is a new microprocessor-controlled, high-precision spraying concept for applying reagents to thin-film plates or films.
Spray programs include all the necessary settings and can be saved with all formulas and observations.
The Chromajet DS20 automatic derivatization system is a fully automated spraying device. Reagents are sprayed on thin-layer plates or foils with the highest precision under microprocessor or computer control. The distinction from manual spraying lies in the great reduction in the quantity of reagent required, the almost complete absence of aerosol formation and the evenness of the spray pattern. It is possible to create and store up to 4 spray methods specifically adapted to individual chromatography schemes and call them up as required. The integrated software works under Windows 10.
The individual working steps of the spraying procedure, including date and running number, are stored with the spray method. That permits operation in conformity with GxP as a result of the exact reproducibility and documentation.
The spray methods define all important parameters, such as spray rate, volume to be sprayed and reagent selected. The free selection of X-Y coordinate direction means that it is possible to spray evenly, either individual tracks or areas of any size up to 200 x 200 mm. The integrated reagent changer selects from 4 possible reservoirs of the desired spray medium depending on the spray program. An integrated rinsing process stops any carry-over.
The transparent protective cover permits close inspection during the spray process and prevents the escape of aerosols. Excess spray mists are evacuated continuously and lead, for instance, into a fume cupboard, via an optional exhaust hose. The spray protocol includes all individual parameters of the spray program and is issued completely with date, time, user name, a plate designation assigned to the chromatogram and any comments that might have been entered.
Compared with traditional manual spraying techniques, this device considerably reduces reagent consumption and achieves homogeneous medium , thanks to uniform dosing facilitated by the Teflon spray head.
The transparent protective cover prevents aerosols from escaping and provides optimum visibility during the spraying process.
Excess air is continuously discharged via a closed extraction pipe leading to a vent, for example.
Drawing up a spray protocol ensures that documentation complies with GLP standards.
This protocol includes all the individual parameters of the spray program, as well as date, time, file name, user name, an identification mark integrated into the chromatogram and recorded comments.
Technical Specifications:
- Derivatization area 200 x 200 mm
- Jet speed 50 – 200 mm/s
- Spray cycle 1 – 5
- Spray grid 2 – 4 mm in 0.1 mm steps
- Air throughput 70 – 100 %
- Reagent throughput 50 – 240 s/mL
- Filling rate, rinsing rate 6 – 30 s/mL
- Rinsing operation 1 – 5
- Dimensions (W x H x D) 440 x 405 x 275 mm
- Weight 15 kg
