Malvern Instruments has extended the applications for its Viscotek Triple Detector Array (TDA), the multi-detector platform for gel permeation/size exclusion chromatography (GPC/SEC).
The TDA maximises the productivity of GPC/SEC analysis by simultaneously measuring absolute molecular weight, molecular size and intrinsic viscosity.
The viscometer combines sensitivity with a 316 stainless-steel transducer construction that offers chemical resistance.
It provides intrinsic viscosity and structural information for an expanded range of biomolecules as well as natural and synthetic polymers.
The viscometer design uses digital inert transducer technology for a faster, more sensitive response to viscosity changes than traditional transducers, according to Malvern.
The 316 stainless-steel construction means that there are now few limitations, in terms of salt content or pH, on the chromatographic conditions that can be used.
This is a significant benefit for protein analysis.
The use of inert capillaries in the measuring flow path is also advantageous for many biomolecule applications.
The TDA lies at the heart of the Viscotek TDAmax; a complete, advanced GPC/SEC system suitable for all macromolecular applications.
Each element of the TDA can be purchased alone or in combination, offering flexibility to those with existing GPC/SEC systems.
UV and/or PDA detectors are available to further augment detection capabilities.
These can be useful for the analysis of composition for copolymers and/or conjugated proteins.
