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TESTA Analytical Solutions e.K. reports on widespread interest from European laboratories for performance qualifying their particle size, zeta potential and GPC/SEC instruments.
Dual Detector Enables Sensitive Determination of Molecular Weight Distribution Testa Analytical Solutions e.K reports on the development and OEM supply of a novel combination refractive index/viscometry detector for Brookhaven Instruments Corporation (Holtsville, NY, USA). Polymer and plastics manufacturers offer very many different grades of commodity polymers such as poly(vinyl chloride), polyethylenes, and polystyrenes. The Molecular Weight Distribution (MWD) of such polymers is a key item of information in tailoring their implementation for different end uses. The Brookhaven Instruments B...
Using Dynamic Light Scattering (DLS) to Analyze Virus Particles Conventional visual techniques of detecting virus particles in solution provide a glimpse of an extremely small sampling volume, while the method of particle analysis employing dynamic light scattering generates an ensemble average of particles inside the solutions. Virus particles incubated in the laboratory pose an issue, as they need to be grown inside cells in a media containing albumin and additional small proteins, like those inside Fetal Bovine Serum (FBS) or Minimum Essential Media (MEM) solutions. When v...
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The BI-870 Dielectric Constant Meter from Brookhaven Instruments allows users to easily measure dielectric constants. Users can simply insert the probe in the liquid to be quantified, modify the two controls on the front panel and can read the dielectric constant from the display. The BI-870 Dielectric Constant Meter can precisely quantify in low- and high-dielectric solvents, such as solutions and mixed liquids. Measurement of Dielectric Constants has Never Been so Easy with the BI-870 The BI-870 Dielectric Constant Meter features two selectable sensitivity ranges—1 to 20 and 1 to 200. Ab...