GPC/SEC: Absolute Detector for Absolute Molecular Weight

The Triple Detector Array (TDA) is the preferred method for characterizing natural and synthetic polymers and proteins by size exclusion chromatography. The TDA employs a concentration detector, 4-capillary viscosimeter and light scattering detector acting in concert, with each detector providing complimentary but different information.

In a single GPC experiment, obtain:

• Absolute Molecular Weight
• Molecular Size
• Intrinsic Viscosity
• Branching
• Structure

Low angle light scattering at 7° is the only GPC detection method that provides absolute molecular weights without extrapolation or correction.

Viscotek, the inventor of the 4-capillary viscometer detector, provides the larges experience in GPC viscometry and offers the most sensitive viscosity detector.
Combination of the TDA with UV-detection provides information necessary for the determination of copolymer composition.

Configuration of the TDA detector is possible in any combination of detectors.