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AZURA® RID 2.1L Refractive Index Detector

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with Flow Cell, up to 10 ml/min

The KNAUER AZURA® RID 2.1L is a sensitive and affordably priced differential refractometer, ideal for detecting compounds with little or no UV activity, such as alcohols, sugars, lipids, and polymers. This instrument is designed for use in analytical HPLC, and GPC applications. 

The intelligently designed optical unit, equipped with advanced temperature control, ensures high sensitivity, rapid baseline stabilization, and excellent reproducibility. Additional features include a long-life LED, a highly pressure-resistant flow cell, improved safety features, and enhanced diagnostics functions, all contributing to easy handling and minimal maintenance.

Its wide linear dynamic range, low internal volume of 43 µl from the inlet to the flow cell 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 using ClarityChrom®, OpenLAB®, Chromeleon™ and PurityChrom® software. It also supports stand-alone operation via Mobile Control software, and can be integrated into almost any LC system through LAN or analog input/output.

  • Detector Type
  • Detector Version
  • Detection Channels
  • Refractive Index Range
  • Light Source
  • Baseline Noise Level (RI)
  • Drift (RI)
  • Linearity (RI)
  • Max. Data Rate
  • Time Constants
  • Autozero
  • Leak Sensor
  • Flow Cell Volume (RI)
  • Max. Flow Rate
  • Flow Cell Max. Pressure (RI)
  • Wetted Materials
  • Wetted Materials
  • Wetted Materials
  • Temperatur Control
  • Temperatur Control
  • GLP Report
  • GLP Report
  • Display

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Internal Reference: ADD31

Technical Data

General
Detector Type Refractive index detector
Detector Version Analytical
Detection Channels 1
Refractive Index Range 1.00-1.75 RIU
Light Source Long-life LED
Flow Cell Volume (RI) 15 µl (43 µl dispersion volume)
Flow Cell Max. Pressure (RI) 5 bar, 72 psi
Temperatur Control Off, 30-55 °C (1 °C increment)
Display Mobile Control (optional)
Specifications
Max. Flow Rate 10 ml/min (pure water)
Features
Autozero Full Range
Leak Sensor Internal and external leak management
GLP Report Operating hours, Light source operating hours
Specification - Detection
Baseline Noise Level (RI) ± 2.5 nRIU
Drift (RI) 200 nRIU/h
Linearity (RI) > 1000 µRIU
Max. Data Rate 100 Hz (LAN) / 20 Hz (analog)
Time Constants 0.01 / 0.02 / 0.05 / 0.1 / 0.2 / 0.5 / 1.0 / 2.0 / 5.0 / 10.0 s
GMP Relevant
Wetted Materials Stainless Steel, fused silica, PTFE (Teflon)
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