Refractive Index Detector (RI Detector)
RefractoMax ULTRA
Latest development with best measurement results!
The new RI detector "RefractoMax ULTRA" was developed for fast chromatography.
Refractive index detectors are a widely used detector type for general, isocratic applications.
They are used for measuring analytes that bear no chromophores and/or are volatile.
The RI serie RefractoMax is characterized by short start-up times and excellent baseline stability, even over longer measurement periods.
Arrange a date with us for a demonstration and experience the efficiency of this RI detector
Performance characteristics
Performance characteristics
- Simple handling:
The user sees the working conditions at a glance on the coloured display screen. Complex processes such as the change of eluent in the reference cell can be automated via the start-up button. Simple instrument validation and calibration via the “HELP” function.
- Accurately tempered measuring cell:
A stable baseline is achieved in the shortest possible time by optimisation of the temperature control and best thermal isolation.
- High sensitivity:
Due to its baselinestability the RefractoMax shows a superior signal to noise ratio. Nearly no drift appears even at long analysis times.
- Safety features:
The detector is equipped with a leak sensor that switches off the pump automatically.
- Various automated functions:
External inlet and outlet ports, as well as the RS 232 interface, allow communication with all chromatography systems.
Range of uses
Range of uses
For example, for the detection of:
* saccharides
* organic acids
* proteins
* peptides
* polymers
* lipids
Specifications
Specifications
Measuring principle: | differential measurement of light beam deflection |
Flow rate: | normally 0.1-1.0 ml/min; max. 2 ml/min |
Cell volume: | 2,5 µl |
Data rate: | 100 Hz |
Measuring range: | 1/4 - 512 µRIU |
Linearity: | 600 µRIU |
Characteristic noise: | 2.5 nRIU (Response:1.5 s) |
Polarity: | positive / negative |
Time constants: | 0.1;0.25;0.5;1.0;1.5;2;3; 6 seconds |
Auto zero: | entire refractive index range |
Auto Zero Resolution: | 1 (bei 2mV / µRIU) / 4 (bei 8mV / µRIU) nRIU |
Offset range: | 0 ~ 500 mV |
Integrator output: | 0-1 V/FS |
Marker: | Marker output: 10% of FS |
Interface: | RS-232 |
Max cell pressure: | 50 kPA |
Parts touched by the medium: | SS 316, Teflon, quarz-glass |
Temperature control: | 30~55°C (1°C steps) |
External signal inputs: | auto zero , Marker, Polarität, Purge On/Off |
External signal outputs: | ready; leak; error |
User support: | start-up function; span/validation |
Power connection: | AC 100 ~ 240V +/- 10%;500/60 Hz |
Power consumption: | max. 150 VA |
Dimensions (w x h x d): | 260 x 150 x 450 mm |
Weight: | approx. 12 kg |
other models
other models
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RefractoMax analytical: | flow rate: 0.5 - 5 ml/min |
RefractoMax preparative: | flow rate: 5 - 200 ml/min |
Specifikations micro-analytical-semipreparative
Tel.: +49 89 660 55 696
E-mail: partner@erc-hplc.de