On-line Differential Refractometers for HPLC and UHPLC
An on-line differential refractometer with EXtended range for universal concentration and dn/dc measurements.
The Optilab T-rEX provides both exquisite sensitivity and 50 times the dynamic range of every other RI detector available. It is the only on-line detector offering temperature control both above and below ambient, as well as measurement of the absolute refractive index of solvents. A high concentration version measures protein concentration up to 180 mg/mL.
Universal concentration measurement for use with all UHPLC systems.
The Optilab UT-rEX is a unique Refractive Index detector that offers high sensitivity and 50 times the dynamic range of every other UHPLC RI detector. Like the Optilab T-rEX, it offers temperature control both above and below ambient, as well as measurement of the absolute refractive index of solvents.
|Capabilities||Optilab||Optilab HC||Optilab UT-rEX|
|Differential Refractive Index|
|Range||-0.0047 – +0.0047 RIU||-0.0026 – +0.034 RIU||-0.0047 – +0.0047 RIU|
|Peak-to-Peak Noise||± 7.5 x 10-10 RIU||± 1.5 x 10-9 RIU||± 1.5 x 10-9 RIU|
|Acquisition Period||0.1 – 5 seconds/sample||0.1 – 5 seconds/sample||0.04 – 5 seconds/sample|
|Absolute Refractive Index|
|Range||1.2 – 1.8 RIU||1.2 – 1.8 RIU||1.2 – 1.8 RIU|
|Sensitivity||± 0.002 RIU||± 0.002 RIU||± 0.002 RIU|
|Band Broadening||< 20 µL||< 20 µL||< 4 µL|
|Flow Cell & Inlet Tubing Volume||51.4 µL||51.4 µL||13.9 µL|
|Sample Temperature||4°C – 65°C||4°C – 65°C||4°C – 65°C|