The Rotonetic drive enables testing in all conventional strain-controlled and stress-controlled modes, including stress relaxation, creep, and viscometric modes.
These detectors deal with different polymer conformations by using low-angle laser light scattering (LALLS), multi-angle laser light scattering (MALLS), or right-angle laser light scattering (RALLS) in combination with viscometric detection.
Viscometric data of polymeric solutions were obtained by using Huggins, Kramer, Martin and Schulz-Blaschke equations in THF at 303 K, by graphic extrapolation and Solomon-Ciuta, Deb-Chantterjee equations through a single point determination, which represents the benefit of being a faster method.
DNA interaction studies of HL and complexes 1-4 with CT-DNA in Tris-HCl buffer were analyzed by electronic absorption spectral titration and viscometric measurements [16, 17].
Viscometric measurements were carried out in dichlorethane in the temperature range of 20[degrees]C-75[degrees]C using an Ubbelohde suspended level viscometer (type 0a, with a capillary diameter of 0.53 mm and a constant K of 0.005).