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Irradiation-induced degradation of sodium alginate studied by SEC-MALS

Waters | Wyatt Technology
3 Feb 2025

Explore the impact of gamma irradiation on sodium alginate, a polysaccharide widely used in food and medical applications. Using SEC-MALS with a DAWN™ multi-angle light scattering detector and Optilab™ refractometer, researchers can determine molecular weight, size, and conformation without relying on column calibration assumptions. Understanding these properties is crucial for optimizing sodium alginate's performance as a thickening agent and sterile wound dressing.

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DAWN™

Waters | Wyatt Technology

The DAWN is the premier Multi-Angle static Light Scattering (MALS) detector for absolute characterization of the molar mass and size of macromolecules and nanoparticles in solution, offering the highest sensitivity and widest range of molecular weight, size, concentration and optional features.

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Size Exclusion ChromatographySize exclusion chromatography (SEC) is a liquid chromatographic technique used to separate and identify molecules based on their size, including polymers, proteins, nanoparticles & nucleic acid. SEC is further subdivided into gel filtration chromatography (GFC) and gel permeation chromatography (GPC) when an aqueous or organic mobile phase is used respectively. HPLC-based SEC systems and columns are available for analytical separation alongside SEC spin columns or filters to prep samples for many protocols. Find the best size exclusion chromatography equipment in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Food and Beverage AnalyzersFood and Beverage Analyzers are commonly used to provide information about the chemical composition, structure and physical properties of food materials.Food and Beverage ProcessingFood and Beverage Processing involves the preparation of food products for further analysis. Typical instrumentation includes blanchers, color sorters, cookers, grinders, and refrigeration. These are used to replicate the processes commonly used in the commercial preparation of food and beverages.Food AdditivesMolecular Weight AnalysisMolecular weight analysis determines the size and structure of biomolecules, essential in protein characterization, polymer studies, and drug development. Techniques like mass spectrometry ensure precise results. Compare solutions for molecular weight analysis in our peer-reviewed product directory.Food TestingFood testing refers to a variety experiments including PCR, mass spectrometry, processing, QuEChERS, analyzing and Kjeldahl.SECSize exclusion chromatography (SEC) separates molecules based on size, ideal for protein purification, polymer analysis, and biopharma applications. SEC ensures precise characterization of biomolecules for research and industry. Explore peer-reviewed SEC products and compare options for your lab.

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Irradiation-induced degradation of sodium alginate studied by SEC-MALS