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Absolute Molar Mass Detector

Based on the family of proprietary multi-angle light scattering detectors, the DAWN HELEOS II supports 18-angles of detection for absolute molecular weight and size determinations of polymers and biopolymers. It may be connected in series to any chromatographic fractionation system to determine absolute molar masses without the use of reference standards or column calibration. The instrument incorporates a special 120-mW gallium arsenide laser operating at a wavelength of 658 nm. This laser, together with its optical collimator, produces light-scattering signals superior to those obtained with an advanced argon-ion laser. The detector uses proprietary laser stabilization electronics and optical system to create a beam with optimum intensity stability and spatial mode purity.
Wyatt Technology
6300 Hollister Ave.
Santa Barbara, CA, 93117