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Praesto SP 是一种琼脂糖基质的强阳离子交换填料，用来纯化生物分子，包括蛋白质、肽和寡核苷酸。有三种粒径的填料可供选择 – 45μm，65μm和90μm – 根据不同粒径来获得高分辨率、适度分辨率或者捕获阶段。
同时Purolite 还提供‘Jetting’工艺生产的均粒强阳离子交换填料，Jetted SP35。
如您有更多相关的疑问，可点击FAQs获得更多相关信息。
PRINCIPAL APPLICATIONS
| REGULATORY APPROVALS
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ADVANTAGES
| TYPICAL PACKAGING
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| TYPICAL PHYSICAL & CHEMICAL CHARACTERISTICS: | ||
| Polymer Structure | Highly cross linked agarose | |
| Appearance | Spherical beads | |
| Functional Group | Sulfopropyl | |
| Chemical stability | All commonly used aqueous buffers. 1M NaOH, 8M urea, 6M guanidine hydrochloride, 30% isopropanol and 70% ethanol | |
| Avoid | Oxidising agents, cationic detergents | |
| Ionic capacity – medium | 0.11 – 0.16 mmol H⁺/ml | |
| Ionic capacity – resin | 0.11 – 0.16 mmol/ml | |
| Particle Size – µm | 45µm | |
| Dynamic Binding Capacity (min.) – 6 minutes residence time | 80 lgG/ml | |
| Dynamic Binding Capacity (min.)- 3 minutes residence time | 80 hlgG/ml | |
| Pressure/flow (min.) – at 3 bar in a 2.6 x 20 cm column (pressure-packed at 4 bar) | 200 cm/h | |
| pH stability, CIP (short term) | 3 – 14 | |
| pH stability, working range | 4 – 13 | |
| Recommended Storage | 4 – 30 °C | |
| Recommended Storage | 20% ethanol | |
| Recommended Storage | 0.2M sodium acetate | |