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Ficoll-Paque Plus stands out in laboratories around the world thanks to its role in separating blood components. This mixture consists of Ficoll, a synthetic polymer, and sodium diatrizoate, a compound that creates the exact density required to separate mononuclear cells from other blood components in a controlled setting. Mixing these two ingredients gives Ficoll-Paque Plus the right properties for reliable, repeatable cell isolation while reducing damage to delicate cells. Centrifugation with Ficoll-Paque Plus allows white blood cells to float at the interface between plasma and the medium, supporting immune research, diagnostics, and stem cell processing.
At room temperature, Ficoll-Paque Plus arrives as a clear, sterile, ready-to-use aqueous solution. Ficoll itself, with a molecular formula of C12H24O9n, forms a highly branched, high-molecular-mass polysucrose. Sodium diatrizoate (C11H8I3N2NaO4) adds the density bump that makes mononuclear cell isolation possible. The final density of Ficoll-Paque Plus sits at 1.077 g/mL, which precisely matches the buoyant density of lymphocytes and monocytes, enabling accurate separation without toxic or lytic effects on living cells. This density offers a unique window for collecting targeted blood components with minimal contamination.
This reagent comes in liquid form, clear and colorless, packaged for immediate use in volumes ranging from 100 mL to 500 mL, often supplied in glass or PET bottles with tight, tamper-evident seals. Each lot undergoes strict quality testing for sterility, density, pH (between 7.0 and 7.4), endotoxin levels, and osmolality, giving researchers confidence in results. Ficoll-Paque Plus never forms flakes, powders, pearls, or crystals; it remains as a stable, homogeneous solution. Specific gravity checks and molecular characterizations are completed for each batch to stay within specified tolerances.
Shipping Ficoll-Paque Plus internationally carries the HS Code 3822.00, grouping it with diagnostic or laboratory reagents. Knowing the HS Code matters for importers, customs authorities, and logistics teams, as it determines duties and regulatory scrutiny. Many regulatory bodies classify Ficoll-Paque Plus as a non-dangerous good for transport under current UN transport regulations. This lets researchers in low- and middle-income countries access high-quality cell separation tools without hazardous materials restrictions, provided the packaging is intact.
With the right handling, Ficoll-Paque Plus poses minimal hazard to researchers. Its components lack volatility and are not flammable, explosive, or corrosive. Direct skin and eye contact should be avoided; gloves, safety glasses, and a lab coat make up the basic personal protective gear. Spills clean easily with water and detergent, as the solution is water-soluble and does not generate dangerous fumes. Inhalation hazard remains virtually non-existent thanks to its liquid form but avoiding ingestion is mandatory. Medical and laboratory staff should always dispose of used Ficoll-Paque Plus in accordance with local chemical and biomedical waste protocols, as it may contain human blood derivatives or infectious agents post-use. The chemical safety data sheet lists the product as not classified as hazardous, but careful, standard laboratory practice never goes out of fashion.
Ficoll in Ficoll-Paque Plus is synthesized by polymerizing sucrose with epichlorohydrin to create the distinctive large-branched molecular structure, while sodium diatrizoate originates from carefully purified raw materials meeting pharmaceutical- and analytical-grade specifications. These components come together to craft a reagent suitable for density gradient centrifugation. The final product goes through sterile filtration, extensive sterility checks, and functional testing with human blood samples to confirm its performance. Scientists use Ficoll-Paque Plus for lymphocyte and monocyte isolation, DNA analysis, prenatal diagnostics, and research on infectious diseases, autoimmunity, and cell-based therapies, showing the importance of precisely engineered raw materials in modern biomedicine.
Having spent years at the bench, the value of a consistent, lot-tested reagent like Ficoll-Paque Plus becomes clear. The standardized properties, like molecular weight, osmolarity, and density, save hours of troubleshooting and troubleshooting because researchers know what to expect across experiments. Getting reliable cell separations boosts both research efficiency and downstream data quality. As cell therapies and personalized medicine grow, ensuring reagents arrive with complete traceability, honest labeling, and clear documentation builds trust across healthcare and life science sectors. Working with Ficoll-Paque Plus shows how detailed chemical knowledge and careful manufacturing lead to advances in clinical diagnostics and research, with an eye always on product safety and reliability.
