Molecular weight of polymers with GPC/SEC-MALS
Gel permeation chromatography (GPC), a.k.a. size exclusion chromatography (SEC), of polymers using a multi-angle light scattering (MALS) detector.
This technique will measure the molecular weight distribution of polymer samples in a graphical format, the dispersity, Đ, and determine the actual molecular weight averages, Mn, Mw, Mz.
In contrast to other techniques using RI detectors and calibration standards, the MALS method will determine the true molecular weight of the sample.
The samples must be soluble or able to be measured from a solution at room temperature. The type of polymer and the necessary solvent will affect the cost of the analysis. Please contact our experts for a quote tailored to your needs.
- Suitable sample matrices
- Polymers soluble in water or the following solvents at room temperature: THF, DMF, CHCl3, DMAc, DMSO, toluene, HFIP. It may be possible to use other solvents or analyze exotic polymers upon request.
- Required sample quantity
- 100 mg
- Typical turnaround time
- 3 weeks after receiving the samples
- Available quality systems
- Accredited testing laboratory
- Device types
- Method expert
Polymers and plastics
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