Accurate measurement of the polymer or protein concentration profile is essential to good molecular weight or structure data. The high-stability Viscotek RI is ideally suited for multi-detection GPC/SEC. The Viscotek RI Detector is sold as part of the Viscotek 270max system, or as a stand-alone module for connection to other chromatography components, such as the GPCmax, UV/Vis or PDA detectors. Two temperature control profiles enable use at normal laboratory temperature or in cold room/cabinet conditions. Automatically purged from the software or as part of a programmed sample sequence. Carefully designed purging system minimizing major temperature changes, giving rapid baseline recovery.