Ahlstrom-Munksjö manufactures a complete line of high-quality lab grade chromatography, electrophoresis papers, and blotting papers for use in gel transfer applications and chromatography techniques. These uniform, smooth, white sheets set the high purity, high quality, and high value standard. They are used in nucleic acid research such as Southern, Northern, and Western blots, electroblotting, and electrophoresis. Ahlstrom-Munksjö's lab grade chromatography, electrophoresis papers, and blotting papers are made from high purity and 100% FDA-compliant alpha cotton cellulose, using ultra-pure RO water, and contain no additives that could cause increased backgrounds or other interference in detection systems.
| Grades | Thickness mm | Klemm 1/16th/min | Absorption Speed mm/30 min | GE Whatman Cross Reference |
| 601 | 0.19 | 13 | 125 | 1 CHR |
| 642 | 0.21 | 12 | 120 | 2 CHR or 20 CHR |
| 631 | 0.23 | 21 | 150 | 4 CHR |
| 238 | 0.34 | 15 | 140 | 3MM CHR |
| 237 | 0.42 | 18 | 150 | 3 CHR |
| 222 | 0.83 | 33 | 220 | 31 ET CHR |
| 243 | 0.95 | 21 | 180 | 17 CHR |
| 320 | 2.48 | 48 | 240 | - |
| Pore Size (µm) | ||||
| Cellulose nitrate | 0.22 | |||
| Cellulose nitrate | 0.45 |
Key Features
- Controlled absorption
- Uniform absorption
- Consistency across the sheet
- Lot-to-lot consistency
- High purity, no sizing or fillers
- Excellent wet-strength and handling
- No hard spots or density variations
- No airborne fibers
- Custom cut
- Bulk packaging