Application Library

Brookhaven’s BI-MwA Aids in Probe for a New Water Soluble Polymer

Istanbul Technical University’s Department of Chemistry presented a study investigating the kinetics of polymerization of N-allyl maleamic acid (AMA) in efforts to come up with a new polymer that would inhibit a cyclo-polymer formation. The study, entitled “New Water-Soluble Polymer With Allyl Pendant Groups” made use of Brookhaven’s BI-MwA Molecular Weight Analyzer through a light […]

Applications: Polymers
Instruments: BI-MwA

Using Uncertainty Analysis to Optimize GPC System Performance (from Boston ACS meeting, 2010)

Introduction GPC when coupled with Static Light Scattering (SLS) is a fairly modern and powerful technique for determining absolute molecular weight values without the need to rely on traditional column calibration. In GPC-SLS the signal intensity levels rather than elution times are evaluated quantitatively. In addition, unlike in polymer standard calibration, details of the accurate […]

Applications: ChromatographyPolymers
Instruments: BI-DNDCBI-MwA

Waste Water Treatment

Advanced particle and colloid research at Yale made possible by Brookhaven ZetaPALS Analyser The Department of Chemical and Environmental Engineering, Yale University, USA, carries out advanced research into water purification including studies of natural and engineered aquatic systems. After moving to Yale from UCLA two years ago, the department’s Llewellyn West Jones Professor of Environmental […]

Applications: Water Treatment
Instruments: NanoBrook Series

Zeta potential measurement of limestone in seawater by Phase Analysis Light Scattering

Abstract Measurements of limestone in 100% seawater (1.15M ionic strength), 50% seawater, and 25% seawater were conducted on the Brookhaven Instruments NanoBrook ZetaPALS. Below is the procedure for preparing these samples as well as the measurement parameters used in their analyses. Introduction Zeta Potential is relatively easy to measure in cases of high charge and […]

Applications: High SaltOil RecoveryPetrochemicals
Instruments: NanoBrook Series

Guide for Dynamic Light Scattering (DLS) sample preparation

Nomenclature The term solvent refers the pure solvent used to prepare the diluent. Examples of solvents are toluene or water. The diluent may also be referred to as the liquid in DLS textbooks. Diluents are solvent with additives, for example a 10% by weight methanol in water or a 10 mM KNO3 salt in DI […]

Applications: DLSSample PrepTheory
Instruments: NanoBrook Series

Dielectric Constant of Hydrocarbon Cleaner

Abstract The Brookhaven Instruments’ BI-870 is used to accurately measure the dielectric constant of a decanamide cleaner. The dielectric value quickly reveals moisture that would lower the quality of the cleaning liquid. Introduction A dielectric material (dielectric for short) is an electrical insulator that can be polarized by an applied electric field. These materials are […]

Applications: Manufacturing
Instruments: BI-870

Brookhaven Instruments Chosen for Characterization of Colloidal Systems

“Brookhaven Instruments’ BI-200SM Research Goniometer and Light Scattering System is critical for the characterization of colloidal systems,” said John C. Berg, Rehnberg Professor of Chemical Engineering and Director of the Engineering Centre for Surfaces, Polymers and Colloids at the University of Washington. “We use the instrument to determine the size of dispersed particles and lipid […]

Applications: Colloids
Instruments: BI-200SM

NanoBrook 90Plus Particle Size Analyzer Used in Silver Nanoparticles Characterization

The Indian Academy of Sciences’ National Chemical Laboratory conducted a study entitled, “Synthesis of Silver Nanoparticles by Sophorolipids: Effect of Temperature and Sophorolipid Structure on the Size of Particles”. Researchers used Brookhaven’s NanoBrook 90Plus Particle Size Analyzer to determine Dynamic Light Scattering measurements in characterizing silver nanoparticles including its ligand shell. This specific technique was […]

Applications: NanoParticles
Instruments: NanoBrook Series

BI-9000 and Research in Space; NASA

Microgravity experiments performed aboard the US Space Shuttle Columbia are helping physicists and chemical engineers at Princeton University understand how the properties of engineering materials are determined by their atomic structure. It’s hoped the work, using equipment supplied by Brookhaven Instruments Corp. in New York State, will provide the key to solving fundamental problems in […]

Applications: ColloidsMicrogravityNASA
Instruments: TurboCorr

Study of Protein Hydrodynamics with Light Scattering: Size and Charge of Lysozyme

By: Yuanmung Zhang Ph.D., Eric Farrell, Douglas Mankiewicz and Zachary Weiner Abstract Effective determination of the size and charge status of biological macromolecules like proteins plays a crucial role in pharmaceutical, clinical and other biotechnological applications. In the present study, dynamic light scattering (DLS) and electrophoretic light scattering (ELS) are employed to characterize the size […]

Applications: Proteins
Instruments: NanoBrook Series
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