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Refractive Index Detector

RefractoMax ULTRA -U/HPLC Refractive (RI) Detector

The RefractoMax ULTRA has been developed for fast chromatography. It is fully compatible with the small peak volumes encountered in U/HPLC applications.

Key Features:
  • 2.5µl cell volume
  • Temperature controlled cell
  • 100Hz data rate
  • Compatible with all common U/HPLC Systems

Also available in Micro, Analytical and Preparative versions

RefractoMAX Ultra
Suitable for a range of analyses, typically where analytes lack a chromophore, RI is used routinely to detect the following classes of compound:
  • Saccharides
  • organic acids
  • polymers
  • lipids

Refractive index detectors are a widely used for isocratic applications. The RefractoMax is characterized by short start-up times and excellent baseline stability, even over longer measurement periods.

Specifications
  • Measurement principle: differential light
  • beam deflection
  • Flow rate: 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
  • Solvent Contact Materials: SS 316,
  • Teflon, quartz-glass
  • Temperature control: 30~55°C (1°C steps)
  • External signal inputs: auto zero , Marker, Polarity, 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
  • Integrator output: 0-1 V/FS
  • Max Cell pressure: 50 kPA


Micro, Analytical and Prep Specifications