Bi 20204

Refractometer & Viscometer

The BI-2020 is a combination RI and Viscometry detector used in SEC/GPC determinations of the MWD using universal calibration.


A true Dual-Detector, refractometer and viscometer, the only one of its kind available. The refractometer is an integral component of the viscometer bridge, measurement of concentration AND viscosity take place on the exact same sample segment, at the very same time. Compared to the more common “external” connection of the two detectors, the BI-2020 Dual-Detector provides a factor of 2 to 5 higher sensitivity, near ZERO delay volume and unsurpassed overall performance.