简要描述：GE离子交换填料弱阴离子DEAE葡聚糖凝胶A-25，强阳S、SP、强阴Q、QAE、弱阳CM、弱阴DEAE的区别在于使交换介质守全离子化的PH范围，较宽者为强，较窄者为弱，与结合强度无关。传统的凝胶多数为弱阳CM、弱阴DEAE，同样的纯化工作，可以用强阳S、SP、强阴Q、QAE介质替代。
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GE离子交换填料弱阴离子DEAE葡聚糖凝胶A-25
GE离子交换填料弱阴离子DEAE葡聚糖凝胶 A-25描述：强阳S、SP、强阴Q、QAE、弱阳CM、弱阴DEAE的区别在于使交换介质守全离子化的PH范围，较宽者为强，较窄者为弱，与结合强度无关。传统的凝胶多数为弱阳CM、弱阴DEAE，同样的纯化工作，可以用强阳S、SP、强阴Q、QAE介质替代。
50较25多孔，孔径较大。对于分子量小于30，000者，25比50的载量高；30,000-100,000者，50则比25的载量高；大于100,000者，结合限于颗粒表面，25的载量更高。
GE离子交换填料弱阴离子DEAE葡聚糖凝胶A-25订购信息：
| 产品描述 Sephadex | 规格 | 货号 | 生产商 |
|---|---|---|---|
| Mono P 5/50 GL | 1 x 1 ml | 17-5170-01 | GE Healthcare |
| Mono P 5/200 GL | 1 x 4 ml | 17-5171-01 | GE Healthcare |
| PBE 118 | 200 ml | 17-0711-01 | GE Healthcare |
| PBE 94 | 200 ml | 17-0712-01 | GE Healthcare |
| Polybuffer 74 | 250 ml | 17-0713-01 | GE Healthcare |
| Polybuffer 96 | 250 ml | 17-0714-01 | GE Healthcare |
| QAE Sephadex A-25 | 100 g | 17-0190-01 | GE Healthcare |
| QAE Sephadex A-25 | 500 g | 17-0190-02 | GE Healthcare |
| QAE Sephadex A-25 | 5 kg | 17-0190-03 | GE Healthcare |
| QAE Sephadex A-50 | 100 g | 17-0200-01 | GE Healthcare |
| QAE Sephadex A-50 | 5 kg | 17-0200-03 | GE Healthcare |
| SP Sephadex C-25 | 100 g | 17-0230-01 | GE Healthcare |
| SP Sephadex C-25 | 500 g | 17-0230-02 | GE Healthcare |
| SP Sephadex C-25 | 5 kg | 17-0230-03 | GE Healthcare |
| SP Sephadex C-50 | 100 g | 17-0240-01 | GE Healthcare |
| SP Sephadex C-50 | 500 g | 17-0240-02 | GE Healthcare |
| SP Sephadex C-50 | 5 kg | 17-0240-03 | GE Healthcare |
| DEAE Sephadex A-25 | 100 g | 17-0170-01 | GE Healthcare |
| DEAE Sephadex A-25 | 500 g | 17-0170-02 | GE Healthcare |
| DEAE Sephadex A-25 | 5 kg | 17-0170-03 | GE Healthcare |
| DEAE Sephadex A-50 | 100 g | 17-0180-01 | GE Healthcare |
| DEAE Sephadex A-50 | 500 g | 17-0180-02 | GE Healthcare |
| DEAE Sephadex A-50 | 5 kg | 17-0180-03 | GE Healthcare |
| CM Sephadex C-25 | 100 g | 17-0210-01 | GE Healthcare |
| CM Sephadex C-25 | 500 g | 17-0210-02 | GE Healthcare |
| CM Sephadex C-25 | 5 kg | 17-0210-03 | GE Healthcare |
| CM Sephadex C-50 | 100 g | 17-0220-01 | GE Healthcare |
| CM Sephadex C-50 | 500 g | 17-0220-02 | GE Healthcare |
| CM Sephadex C-50 | 5 kg | 17-0220-03 | GE Healthcare |