TSKgel GMPW
TSKgel GMPW are mixed bed scouting columns for water-soluble linear polymers. The pore volume can be accessed by polymers ranging in molecular weight from 500 to 8 x 10^6 Da.
Mixed bed columns contain a mixture of different pore sizes that have an extended linear calibration range, suitable for samples with a broad molar mass distribution as well as unknown samples. By quickly categorizing the molecular weight profile of an unknown sample, the column enables a fast selection of the best TSKgel PW column for routine analysis.
Stable from pH 2 to 12, TSKgel GMPW columns can be used in mobile phases of water or buffer (up to 20% methanol/80% aqueous) and can tolerate temperatures up to 80 ˚C.
Calibration Curves or TSKgel PW Columns |
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Columns: TSKgel PW columns, all 7.5 mm ID × 60 cm
A. G2000PW, B. G2500PW, C. G3000PW, D. G4000PW,
E. G5000PW, F. G6000PW, G. GMPW
Mobile phase: distilled H20
Flow rate: 1.0 mL/min
Detection: RI |
Effect of ionic strength on the elution of anionic polymers |
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Columns: TSKgel GMPW, 17 µm, 7.5 mm ID × 60 cm × 2
Mobile phase: H2O with 0.01 mol/L, 0.025 mol/L, 0.05 mol/L or 0.1 mol/L NaNO3
Flow rate: 0.5 mL/min
Detection: RI
Sample: 0.5 mL of 0.05-0.1% of the sodium salt of polyacrylic acid,
an anionic polymer |