Analytical refractive index detector
The AZURA RID 2.1L is a sensitive and competitively priced differential refractometer. It is suitable for detecting compounds with little or no UV activity such as alcohols, sugars, lipids or polymers. This instrument is designed for use in analytical HPLC (high performance liquid chromatography) as well as for GPC (gel permeation chromatography) applications. The intelligently designed optical unit with advanced temperature control ensures high sensitivity, fast baseline stabilization, and excellent reproducibility. Furthermore, the long-life LED, highly pressure resistant flow cell, improved safety features and enhanced diagnostics functions guarantee easy handling and minimal maintenance. The wide linear dynamic range and 10 ml/min maximum flow rate make the AZURA RID 2.1L the perfect choice for most laboratory tasks. This detector can be controlled with OpenLAB® EZChrom, ClarityChrom®, Chromeleon® and PurityChrom® Bio software, as well as from the AZURA Mobile Control app (stand-alone operation), via LAN or through analog input/output, allowing it to be integrated into almost any LC system. Learn more in our video:
Technical Data
| Detector type |
Refractive index detector |
| Version |
analytical |
| Light source |
Long-life LED |
| Detection channels |
1 |
| Refractive index range |
1.00 – 1.75 RIU |
| Noise |
± 2.5 nRIU |
| Drift |
200 nRIU/h |
| Linearity |
> 1000 µRIU |
| Flow cell |
5 bar back pressure resistance Flow cell included |
| Maximum flow rate |
10 ml/min (pure water) |
| Flow cell volume |
15 µl |
| Wetted materials |
Stainless steel / fused silica / PTFE / PEEK |
| Temperature control |
OFF, 30 – 55 °C (1 °C increment) |
| Time constants |
0.00 / 0.01 / 0.02 / 0.05 / 0.1 / 0.2 / 0.5 / 1.0 / 2.0 / 5.0 / 10.0 s |
| Maximum data rate |
100 Hz (LAN)/20 Hz (Analog) |
| Autozero |
Full range |
| Leak sensor |
Yes (internal and external leak management) |
| Inputs |
Error (IN), Start (IN), Autozero, Flush (IN) |
| Outputs |
Event 1, Start (OUT), Error (OUT), + 5 V, 24 V Valve |
| Analog outputs |
1 x 0- 2.5 V scalable, 20 bit, offset adjustable |
| Control |
Mobile Control, software, event control, analog, terminal protocol |
| Interfaces |
2 x LAN (RJ-45, dual IP-stack), USB (service only), multi-pin connector, analog (cinch connector) |
| GLP |
Detailed report including operating hours, light source operating hours |
| Display |
Mobile Control (optional) |
| Ambient conditions |
Temperature range: 4 – 40 °C, 39.2 – 104 °F, Humidity: below 90 % noncondensing |
| Power supply |
100 – 240 V, 50 – 60 Hz, 65 W |
| Dimensions |
361 x 158 x 523 mm (W x H x D) |
| Weight |
10.8 kg |
| Optional accessories |
Mobile Control |
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AZURA Detector RID 2.1L User Manual EN (V6750)
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AZURA Detektor RID 2.1L Benutzerhandbuch DE (V6750)
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Refractive Index Detector Kit
Analysis of non-UV absorbing substances with AZURA RID 2.1
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List of supported devices in chromatography data systems EN (V1663)
Device support in KNAUER CDS / KNAUER device support in 3rd party software
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VSP0012N Rapid performance verification of AZURA systems with refractive index detector
This application note is a guideline describing step-by-step a compact performance verification (PV) of AZURA® Analytical HPLC systems including a refractive index detector, using a reversed phase (RP) column and a standard test solution (VSP0012N)
ICON Scientific, Inc
