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Special Reports Rubric : particle analytics



Rubrics : particle analytics - service provider
TESTA Analytical Solutions is one of the few manufacturer focused on GPC/SEC instrumentation. For Particle Sizing, SLS ad Zeta Potential we partnered with Brookhaven Instruments Corp.

 

Accurate Determination of Structure & Branching in Complex Polymers

January 2019

The AYE Combo Refractometer / Viscometer

Detection of intrinsic viscosity
The AYE Combo Refractometer / Viscometer from Testa Analytical Solutions e.K. sets a new standard for the detection of intrinsic viscosity of highly diluted samples. 

This unique instrument
is designed to have a high performance refractometer as an integral part of the viscometer, therefore both concentration and viscosity are measured at exactly the same time on the very same sample segment. 

More accurate
As a consequence the AYE Combo Refractometer / Viscometer allows a much more accurate determination of molecular parameters and is particular suitable for applications focused on determining the structure and branching of complex polymers. 

Overcoming limitations
Using a viscometer within a GPC/SEC System, requires a source of a concentration signal to complete the necessary calculations. The limitation of using a standard Differential Refractive Index (DRI) detector for this task, is that it must deliver a corresponding concentration signal for each point on the viscosity curve. This is possible with two separate instruments, precision of the results however, will be limited due to the volume difference of the detectors. A combination instrument, such as the AYE Combo, where both detectors are integral part of each other, overcomes these limitations and allows a much better determination of the sample under investigation. 



For further information
on the AYE Combo Refractometer / Viscometer please visit https://www.testa-analytical.com/index.html?dc=AYE&sn=2 
or contact Testa Analytical Solutions on +49-30-864-24076 / info@testa-analytical.com.


 

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