离子交换葡聚糖凝胶是葡聚糖经环氧氯丙烷交联后形成的具有多孔三维空间网状结构和离子交换功能基团的多糖衍生物。DEAE-A25 颗粒大小:40-120μm 分离大小:小蛋白及巨大分子;
离子交换葡聚糖凝胶具有亲水性强、不会引起生物分子的变性与失活,母链对蛋白质、核酸及其他生物分子的非特异吸附能力小的特性。它能引入大量活性基团而骨架不被破坏,交换容量很大,外形呈球形,装柱后,流动相在柱内流动的阻力较小,流速理想。
Type of ion exchanger
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Weak anion
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Binding Capacity/ml Chromatography Medium
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thyroglobulin (Mr 669 000)- 1 mg/ml drained medium), HSA (Mr 68 000)- 30 mg/ml drained medium), α-lactalbumin (Mr 14 300)- 140 mg/ml drained medium)
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Particle size range
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40~120µm
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pH working range
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2~9
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Chemical stability
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Stable to all commonly used aqueous buffers additives such as 8 M urea and 6 M guanidine hydrochloride.
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Appearance
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White beads
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