High Temperature Differential Viscometer Detector

The differential viscometer detector provides a measurement of intrinsic viscosity and allows for the determination of molecular size, conformation and structure, enabling accurate branching determinations.

Viscotek invented and patented the first differential viscometer detector and the latest version used in the HT-GPC systems is a testament to that experience – with high sensitivity and unrivalled baseline stability.

It is the only viscometer detector to feature Digital Inert Transducer (DIT) technology. These unique new devices give a faster, more sensitive response to viscosity changes compared to the traditional magnetic-reluctance transducers. In addition, the innovative construction in 316 stainless steel means they are chemically robust with few limitations on solvents.

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	Featured presentations and application notes:
	Application communication: Protein and polymer molecular size by GPC/SEC The main goal of most Gel Permeation/Size Exclusion Chromatography (GPC/SEC) experiments is to determine the molecular weight distribution (MWD) of the sample or compare molecular weights (MW) of several samples.
	On-demand presentation: Quality Control Analysis of CPVC Pipe Using Advanced Detection GPC Chlorinated polyvinylchloride (CPVC) is a common thermoplastic used for applications requiring an economical material for liquid handling. The process of manufacturing CPVC pipe follows two basic steps. The material is first compounded with a variety of additives to control both functional an aesthetic properties and is then extruded under heat and pressure to mold the final product. In some cases, the final product does not contain the required physical properties. The material’s performance can be directly linked to the structural deficiencies of the CPVC. To monitor these changes, the CPVC can be isolated, separated by GPC, and analyzed using advanced detection to determine inconsistencies in the structural properties that may arise during the extrusion process. These changes, whether they are structural or chemical, can be correlated back to the stability of the virgin CPVC used, preventing further processing of defective material
	More application notes and online presentations are available to search for FREE in the Malvern Application Library and Presentations Database (Requires Free registration).