A Combination RI and Viscometry Detector—the BI-RIVS from Brookhaven Instruments

Brookhaven Instruments’ BI-RIVS is a combination of RI and Viscometry detector that allows SEC or GPC determinations of the MWD using universal calibration.

The BI-RIVS is a true dual-detector, integrating both viscometer and refractometer and is the only one-of-its-kind available in the market.

The refractometer is a fundamental part of the viscometer bridge and both viscosity and concentration can be measured on the same sample segment, simultaneously.

When compared to the more standard “external” connection of the two detectors, the BI-RIVS Dual-Detector offers near ZERO delay volume, higher sensitivity by a factor of 2 to 5 and unrivaled overall performance.

Users no longer have to wait for the sample 'breakthrough' (the negative signal anticipated after every injection) or to adjust an 'internal delay' to the number of columns used by them, like those required by other viscometer designs.

The BI-RIVS Dual-Detector is compatible with all kinds of applications, at any temperature up to 80 °C and with any solvent.

Features at a Glance

  • Dual detector
  • Up to 80 °C
  • Maximizes sensitivity

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