MZ-Analysentechnik GmbH / MZ-Gel SDplus
MZ-Gel SDplus
MZ-Gel SDplus is a high-performance copolymer styrene divinylbenzene with a high degree of cross-linking developed by MZ-Analysentechnik GmbH. It was specially developed for demanding and high-performance GPC. We produce our MZ-Gel SDplus in compliance with high quality requirements and test each individual column in quality control.
Long-term stability and reproducibility: MZ-Gel SDplus - new and after >1,000 injections.
MZ-Gel SDplus consists of a cross-linked copolymer styrene divinylbenzene with a very narrow pore and particle size distribution. Our GPC columns are available in 7 porosities and linear as new and in refill. Typical plate count for the material MZ-Gel SDplus 3µm is > 100,000 plates/m. The 5µm material also has a high selectivity and typically achieves 80,000 - 100,000 theoretical plates/m.
| Porosity | Molecular weight range | Exclusion limit |
| 50Å | < 2.000 | 3.000 |
| 100Å | < 3.000 | 5.000 |
| 500Å | < 20.000 | 20.000 |
| 10e3 Å | 1.000 - 40.000 | 70.000 |
| 10e4 Å | 4.000 - 500.000 | 700.000 |
| 10e5 Å | 10.000 - 2.000.000 | 4.000.000 |
| 10e6 Å | 200.000 - 10.000.000 | > 10.000.000 |
| Linear | 1.000 - 1.000.000 | > 2.000.000 |
MZ-Gel SDplus GPC columns are manufactured, tested and shipped in THF as standard. Of course, they are also available in other common solvents on request. When changing the solvent, the swelling behaviour must be taken into account.
GPC solvents can be divided into four groups from very strong to weak according to their swelling behaviour. This results in the following conversion options:
MZ-Gel SDplus GPC Columns Brochure 2020