SelectScience
Join Free
Accelerating Science
ResourceGeneral Lab

Enhancement of Membrane Separation Performance

Anton PAAR USA

Enhancement of Membrane Separation Performance

31 May 2016

Surface modification of polymer membranes is required to adjust the properties of a base membrane polymer for various filtration applications (drinking and waste water treatment, seawater desalination, liquid/liquid separation). The zeta potential is sensitive to small changes in the surface chemistry and thus suitable for monitoring membrane performance. This application note demonstrates the real-time measurement of surface Zeta Potential using the SurPASS 3 system from Anton Paar.

Related products

Request Quote for All Products

SurPASS™ 3: A New Level of Surface Charge Analysis

Anton Paar

The SurPASS 3 series features fully automated zeta potential analysis of macroscopic solids under real-life conditions. As electrokinetic analyzers, they employ the classic streaming potential and streaming current method for a direct analysis of the surface zeta potential. The zeta potential is related to the surface charge at a solid/liquid interface and is a key parameter for understanding surface properties and developing new specialized materials.  High-end electrokinetic analyzer for solid surface analysis Fully automated zeta potential analysis on macroscopic solids Automated detection of the isoelectric point Time-dependent recording of liquid-on-solid adsorption kinetics

(2)

Links

Anton PAAR USACompany website

Tags

Sample PreparationSample preparation can improve the quality and speed of separation techniques. Products to assist sample preparation include filtration equipment, evaporators, membranes and sieves.FiltrationFiltration and microfiltration are used to separate solids, particulates or large molecules from fluids (liquid or gases) in order to purify the filtrate. Explore a range of filter formats, including filter paper, plates and membranes for your separation needs. While larger particulates may be separated by gravity filtration, smaller particulates may require additional force for timely separation. Microfiltration equipment includes vacuum filters, as well as positive pressure, crossflow and centrifugal filtration devices. Find the best filtration products in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Environmental Monitoring and TestingEnvironmental monitoring and testing uses handheld portable analyzers, kits, spectrometers or chromatography systems for air, water, soil, food and other sample testing. Useful features of analyzers such as BOD and COD include portability, easy calibration, automation and sensitivity.  Environmental test kits for pH, water, moisture, etc, should be accurate, sensitive, reliable, fast and easy to use.Particle CharacterizationParticle characterization instruments are used to determine particle size distribution, shape, surface area, zeta potential, density and porosity of particles and materials. Multiple tecchniques are available for determining particle size, shape and count including dynamic light scattering (DLS), laser diffraction, electrozone (Coulter technique), imaging particle analysis and single particle optical sensing. Determine the density of your material with a gas pycnometer or examine its surface area and porosity with gas adsorption analyzers and mercury porosimeters. Find the best particle characterization instruments in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Non-Destructive TechniquesNon-destructive techniques (NDT) describes a variety of analytical techniques used to evaluate the properties of a material. Common methods include ultrasonic, magnetic-particle, liquid penetrant, radiographic, remote visual inspection (RVI), and eddy-current testing. NDT is regularly used in forensic engineering, civil engineering, mechanical engineering, electrical engineering, systems engineering, aeronautical engineering, and medicine.Water PurificationThere are a number of water purification methods available to remove contamination from laboratory water. These systems include demineralization, reverse osmosis, filtration and ultrafiltration. A combination of methods is sometimes necessary to achieve purified water suitable for use in experiments.Zeta PotentialWaste WaterPolymer FilmsWater AnalysisAnalytical methods used to test the purity of drinking water include determining the level of contaminants abides to the level set by the Environmental Protection Agency (EPA).Water Content AnalysisWater content analysis is crucial for determining the moisture levels in food, pharmaceuticals, chemicals, and other materials. Accurate measurement ensures product quality and shelf-life. Explore water content analysis tools in our peer-reviewed product directory; compare products, check reviews, and get pricing directly from manufacturers.Surface AnalysisDrinking Water AnalysisAnalytical methods used to test the purity of drinking water include determining the level of contaminants abides to the level set by the Environmental Protection Agency (EPA).

Related resources