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Polymer characterization.


The Triple Detector Array (TDA TDA Texas Department of Agriculture
TDA Trade and Development Agency
TDA Transportation Development Act
TDA Tax Deferred Annuity (commonly known as TSA)
TDA Tienda (Spanish: store) 
) is said to set the standard for GPC/SEC technology and is the preferred method for characterizing natural and synthetic polymers and proteins. The TDA employs a concentration detector, viscometer viscometer

Instrument for measuring the viscosity (resistance to internal flow) of a fluid. In one type, the time taken for a given volume of fluid to flow through an opening is recorded.
 and light scattering detector acting in concert, with each detector providing complementary but different information. The TDA is said to combine the power of traditional triple detection with all new UV-VIS and low angle light scattering (LALS LALS Latin American Language Services (UK)
LALS Low Angle Light Scattering
LALS Linkless Ammunition Loading System (Navy)
LALS Laser Alarm Locator System
) options. Concentration can be measured with an RI, UV or both. When used simultaneously, the RI and UV are said to provide information necessary for the determination of copolymer composition. LALS is said to be the only GPC (1) A PC that uses the Linux-based gOS operating system. See gOS.

(2) (GPC Group) Originally the Graphics Performance Characterization committee of the NCGA, the GPC Group is now part of Standard Performance Evaluation Corporation (SPEC) and oversees the following
 detection method that provides absolute molecular weights without extrapolation or correction. (Viscotek)

Circle 110 on card
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Title Annotation:Suppliers Showcase: Instruments
Publication:Rubber World
Date:Apr 1, 2005
Words:126
Previous Article:High-speed inspection.(Suppliers Showcase: Instruments)
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