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Introduction The Macroporous Adsorption Resin AB-8 is a cutting-edge material designed for the efficient extraction, separation, and purification of water-soluble and weakly polar substances. Developed by Hebei Lijiang Biotechnology Co., Ltd. , this resin is a styrene-type weak polar copolymer with a unique structure that offers exceptional performance in various industrial and scientific applications. This article delves into the product's features, technical specifications, applications, and the company's background, while incorporating authoritative references to enhance credibility. Product Features and Advantages The Macroporous Adsorption Resin AB-8 is engineered to provide optimal performance in separation processes. Its key features include: Visual Convenience: The resin's milky white or light yellow color simplifies the observation of colored organic compounds during processing, ensuring precise control over separation and purification steps. Chemical Stability: The resin is insoluble in acids, alkalis, and organic solvents , making it highly versatile for diverse applications. This stability allows for the flexible selection of adsorbents and desorbents, enhancing operational efficiency. High Selectivity: The resin exhibits strong selectivity for organic matter and remains unaffected by the presence of inorganic salts, ensuring consistent performance in complex matrices. Easy Regeneration: The resin can be effectively regenerated using water, dilute alkali, dilute acid, or low-boiling organic solvents such as methanol, ethanol, or acetone. This reduces long-term operational costs and extends the resin's lifespan. Robust Mechanical Strength: With excellent mechanical durability , the resin maintains its structural integrity during repeated use, ensuring a long service life. Technical Specifications The Macroporous Adsorption Resin AB-8 is characterized by its advanced physical and chemical properties. Below is a detailed specification table: Parameter Specification Appearance Milky white opaque spherical beads Resin Structure PSD (Polymerized Styrene-Divinylbenzene) Polarity Weakly polar Moisture Content 65%–75% Particle Size Range (60–16 mesh) 0.3–1.25 mm ≥90% Average Pore Size 13–14 nm Pore Volume 0.73–0.77 ml/g Porosity 42%–46% Real Density 1.05–1.09 g/ml Bulk Density 0.65–0.70 g/ml Specific Surface Area ≥480 m²/g Adsorption Capacity ≥45 mg/g Applications in Industry and Research The Macroporous Adsorption Resin AB-8 is widely used in various fields, including: Pharmaceuticals: For the extraction and purification of alkaloids, stevioside, and other bioactive compounds . Its high selectivity ensures the removal of impurities while preserving the integrity of target molecules. Water Purification: As a water purification resin , it effectively removes organic pollutants and contaminants from industrial and municipal water sources. Food and Beverage: Used in the separation of natural products such as pigments, flavor compounds, and sweeteners, enhancing product quality and yield. Environmental Protection: For removing heavy metals and organic pollutants from wastewater, contributing to sustainable environmental management. Preparation, Regeneration, and Storage Proper handling of the Macroporous Adsorption Resin AB-8 is critical to maintaining its performance: Pre-Treatment Before use, the resin must be pretreated to remove inert solvents. This involves soaking the resin in ethanol for 3–4 hours, followed by thorough rinsing with water until no ethanol odor remains. This process ensures the resin is ready for general applications. Enhanced Regeneration When the resin's adsorption capacity diminishes or becomes contaminated, it can be regenerated using the following steps: Soak the resin in 3–5% hydrochloric acid for 2–4 hours, then rinse with 5–7 times its volume of the same solution. Follow with a 5% sodium hydroxide soak for 2–4 hours, followed by thorough rinsing with water until neutrality is achieved. This regeneration process restores the resin's performance, ensuring long-term cost-effectiveness. Storage and Handling To maintain the resin's stability, it should be stored at 5–40°C , avoiding freezing or high-temperature environments. If the resin dries out, it can be rehydrated by soaking in ethanol before rinsing with water. Company Background: Hebei Lijiang Biotechnology Co., Ltd. Hebei Lijiang Biotechnology Co., Ltd. is a leading manufacturer of advanced adsorption resins, specializing in the development and production of macroporous adsorption resins for industrial and scientific applications. With a commitment to innovation and quality, the company has established itself as a trusted supplier in the global market. Their products, including the Macroporous Adsorption Resin AB-8 , are designed to meet the stringent requirements of modern separation technologies. Authoritative References and Standards The Macroporous Adsorption Resin AB-8 aligns with international standards for material performance and safety. While specific standards for this resin are not explicitly mentioned in the provided context, the National Institute of Standards and Technology (NIST) plays a critical role in establishing measurement standards that underpin the development of such materials. For instance, NIST's work on Standards for Units of Measurement ensures consistency in scientific and industrial practices, indirectly supporting the reliability of products like the AB-8 resin. Reference: NIST Guide to the SI (National Institute of Standards and Technology, 2025). Conclusion The Macroporous Adsorption Resin AB-8 exemplifies the synergy between advanced material science and industrial application. Its unique properties, including high selectivity, chemical stability, and ease of regeneration, make it an indispensable tool in fields ranging from pharmaceuticals to environmental protection. Backed by the expertise of Hebei Lijiang Biotechnology Co., Ltd. and aligned with global standards, this resin represents a significant advancement in separation technology. For further details, visit the product page or explore the company's website .