GPC/SEC Columns and Calibrants
PLgel MIXED Column Selection Guide UHMW polymer distributions
PLgel MIXED-A, 20 μm
High MW polymers, demanding eluents
PLgel MIXED-B, 10 μm
Mid range MW polymers, high resolution
PLgel MIXED-C, 5 μm
Resins, condensation polymers
PLgel MIXED-D, 5 μm
Low MW resins, prepolymers
PLgel MIXED-E, 3 μm 102
107
MW
PLgel MIXED Gel Calibration Curves MIXED gel calibration curves are designed to be linear over a specified molecular weight range, ensuring that the same degree of resolution is achieved across the full operating range of the column. The particle size of the packing and porosity of a particular MIXED gel column are carefully matched to the MW range and application, thus optimizing performance and eliminating the effects of shear degradation. Resolution in GPC is controlled by the slope of the calibration curve and the particle size of the packing material. Agilent has scientifically determined the minimum number of MIXED gel columns required to perform accurate MWD determinations based on specific resolution (Rsp). Thus you can have complete confidence in the accuracy and precision of the calculated data.
Key MIXED-A, 20 μm
Polystyrene Molecular Weight
10 M
MIXED-B, 10 μm MIXED-C, 5 μm MIXED-D, 5 μm MIXED-E, 3 μm
1K
4
Elution Volume (mL)
10 VLC0014
Reference: Meehan, E. (1998) Size exclusion chromatography columns from Polymer Laboratories. In: Chi-San Wu (Ed.) Column Handbook for Size Exclusion Chromatography. Academic Press, New York, USA.
950
LC AND LC/MS
www.agilent.com/chem/lccolumns