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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 combines advanced polymer chemistry with robust physical properties to deliver exceptional performance in industrial and laboratory settings. This article delves into the product's features, technical specifications, applications, and the company's commitment to innovation, supported by authoritative references from the National Institute of Standards and Technology (NIST). Product Overview Macroporous Adsorption Resin AB-8 is a weakly polar, styrene-based copolymer synthesized using divinylbenzene as a crosslinking agent, methyl acrylate as a monomer, and toluene as a porogen. Its unique structure allows it to effectively adsorb a wide range of organic compounds, making it a versatile tool in various industries. The resin's microporous network ensures high surface area and porosity, enabling efficient mass transfer and adsorption capacity. Key Features Stable Physical and Chemical Properties: Insoluble in acids, alkalis, and organic solvents, allowing flexibility in selecting adsorbents and desorbents. High Selectivity: Demonstrates strong affinity for organic compounds, even in the presence of inorganic salts. Easy Regeneration: Can be regenerated using water, dilute acids, alkalis, or low-boiling solvents like methanol or ethanol. Excellent Mechanical Strength: Ensures long-term durability and reduces the risk of particle degradation during use. Color Visibility: Milky white or light yellow beads simplify the observation of colored organic compound separation processes. Technical Specifications The following table summarizes the critical technical parameters of Macroporous Adsorption Resin AB-8: Parameter Specification Appearance Milky white opaque spherical beads Resin Structure PSD (Polystyrene 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 Macroporous Adsorption Resin AB-8 is widely used in the extraction and purification of bioactive compounds such as stevioside, alkaloids, and other water-soluble organic substances. Its high selectivity and adsorption capacity make it ideal for pharmaceutical, food, and environmental industries. For instance, in the pharmaceutical sector, it is employed to isolate alkaloids from plant extracts, while in the food industry, it aids in the purification of natural sweeteners like stevioside. Learn more about AB-8 resin applications . Additionally, the resin's stability and ease of regeneration make it suitable for large-scale industrial processes. It is commonly used in water purification systems to remove organic pollutants, ensuring compliance with environmental regulations. The weak polarity of the resin allows it to effectively adsorb substances like phenolic compounds and dyes, which are challenging to remove using conventional methods. Preparation and Regeneration Before use, Macroporous Adsorption Resin AB-8 requires pre-treatment to remove residual solvents. The process involves soaking the resin in ethanol (10–20 cm above the resin layer) for 3–4 hours, followed by thorough washing with water until the effluent is clear. This ensures the resin is ready for adsorption processes. Detailed pre-treatment instructions are available on the product page. For enhanced regeneration, the resin can be treated with 3–5% hydrochloric acid or 5% sodium hydroxide solutions. This process removes accumulated impurities and restores the resin's adsorption capacity. After regeneration, the resin is rinsed with water until the pH of the effluent is neutral, ensuring it is safe for reuse. Storage and Handling To maintain the resin's performance, it should be stored at 5–40°C to prevent freezing or microbial growth. If the resin dries out, it should be rehydrated using ethanol before washing with water. Never directly inject water into dry resin , as this can cause it to float and reduce efficiency. For long-term storage, the resin can be kept in saturated saline or ethanol solutions. Company Background: Hebei Lijiang Biotechnology Co., Ltd. Hebei Lijiang Biotechnology Co., Ltd. is a leading manufacturer of advanced adsorption materials, specializing in the development of macroporous resins for industrial and research applications. With a focus on innovation and quality, the company has established itself as a trusted supplier in the global market. Their products are used in pharmaceutical, food, and environmental sectors, contributing to sustainable and efficient separation processes. Explore the company's website for more information on their product range and services. Authoritative Insights from NIST The National Institute of Standards and Technology (NIST) plays a critical role in advancing measurement science and standards, which are essential for the development of materials like Macroporous Adsorption Resin AB-8. According to NIST, "Precision in material characterization is vital for ensuring the reliability and performance of industrial and research-grade products" ( NIST Official Website ). The organization's work in analytical chemistry and polymer science provides the foundational standards that enable manufacturers to produce high-quality resins with consistent properties. NIST's research on porous materials and adsorption mechanisms has directly influenced the design of resins like AB-8, ensuring they meet rigorous performance criteria. For example, NIST's standards for pore size distribution and surface area measurements are critical for verifying the technical specifications of such materials. By adhering to these standards, Hebei Lijiang Biotechnology Co., Ltd. ensures that Macroporous Adsorption Resin AB-8 delivers optimal results in real-world applications. Conclusion Macroporous Adsorption Resin AB-8 stands out as a high-performance material for separation and purification processes. Its robust physical properties, easy regeneration, and broad applicability make it a preferred choice in industries ranging from pharmaceuticals to environmental protection. Backed by the expertise of Hebei Lijiang Biotechnology Co., Ltd. and supported by NIST's measurement standards, this resin exemplifies the synergy between advanced materials science and industrial innovation. Whether used in laboratory research or large-scale production, AB-8 is a reliable solution for complex separation challenges. References NIST (National Institute of Standards and Technology): https://www.nist.gov/ Hebei Lijiang Biotechnology Co., Ltd.: https://www.lijiresin.com Macroporous Adsorption Resin AB-8 Product Page: https://www.lijiresin.com/macroporous-adsorption-resin-ab-8.html