MZ-Gel SDplus

Especially for organic eluents

General information


MZ-Gel SD plus is a high-performance copolymer styrene-divinylbenzene with a high degree of cross-linking developed by MZ-Analysentechnik GmbH. It was specially developed for the demanding and powerful GPC. We produce our MZ-Gel SD plus in compliance with high quality requirements and test every single column in quality control.

  • Absolutely spherical particle shape with a very narrow particle and pore size distribution
  • Available in newly developed state-of-the-art column hardware with a guaranteed refill option
  • Particularly reliable and long-term stable

Technical specifications

MZ-Gel SDplus consists of a cross-linked copolymer styrene divinylbenzene with a very narrow pore and particle size distribution. Our GPC columns are offered in 7 porosities and linear as new and in refill. Typical tray count for the material MZ-Gel SDplus 3µm is > 100,000 trays/m. The 5 µm material also has a high selectivity and typically achieves 80,000 – 100,000 theoretical plates/m.

MZ-Gel SDplus 3 microns 5 microns 10 microns
particle shape spherical spherical spherical
porosity [Å] 50-10 3Å _ 50-10 6 Å and linear 50-10 6 Å and linear
Number of trays: minimum guaranteed [m -1 ] 100,000 60,000 50,000
Plate number: typical range [m -1 ] 120,000 80,000 60,000
Pressure stability [bar] 160 160 160
Pressure per 30 cm [bar]* 40 25 15
max. flow Analytical 8 mm ID 1.5mL/min 1.5mL/min 3mL/min
Max Flow Narrow-bore 4.6mm ID 0.6mL/min 0.6mL/min 0.6mL/min
max. flow preparative 20 mm ID 10mL/min 20mL/min
working temperature up to 100° C up to 100° C up to 100° C

* Specification refers to column 300 x 8 mm, flow 1 ml/min, eluent THF

porosity molecular weight range exclusion limit
50Å < 2,000 3,000
100Å < 3,000 5,000
500Å < 20,000 20,000
10e3Å 1,000 – 40,000 70,000
10e4Å 4,000 – 500,000 700,000
10e5Å 10,000 – 2,000,000 4,000,000
10e6Å 200,000 – 10,000,000 > 10,000,000
Linear 1,000 – 1,000,000 > 2,000,000

Solvent Compatibility

MZ-Gel SD plus 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 behavior must be taken into account.


GPC solvents can be divided into four groups from very strong to weak according to their swelling behavior. This results in the following conversion options: