This article introduces the application of Xanthan and its ability to act as a water thickener in oil recovery processes. The authors analyzed a sample of Xanthan using SEC and found that the PL aquagel-OH 60 15 µm columns successfully analyzed the low concentration sample, providing information on the molecular weight, polydispersity, and shape of the molecular weight distribution of the polymer.
Xanthans are high molecular weight polymers used as water thickeners in oil recovery processes. This document details the analysis of these polymers using Size Exclusion Chromatography (SEC). To avoid on-column shear degradation, the sample was analyzed using Agilent PL aquagel-OH 60 15 ym columns, which cover a molecular weight range from 10^4 to 10^7.
| Columns | 2x PL aquagel-OH 60 15 ym, 300 x 7.5 mm |
|---|---|
| Part Number | PL1149-6260 |
| Eluent | 0.2 M NaNO3 + 0.01 M NaH2PO4 |
| Flow Rate | 1.0 mL/min |
| Detection Method | RI |
| Molecular Weight Range | 10^4 to 10^7 |
The analysis used Agilent PL aquagel-OH 60 15 ym columns to avoid on-column shear degradation.
The columns cover a molecular weight range from 10^4 to 10^7.