High Temperature GPC Analysis with HSPgel HT Column
This poster was shown at the First International Conference on
Polyolefin Characterization (ICPC). Gel Permeation Chromatography (GPC)
of polyolefins uses 1,2,4-trichlorobenzene (TCB) as the mobile phase at
elevated temperatures (~140oC). This solvent is toxic and is on the
Priority Chemicals List in the EPA National Waste Minimization Program.
Replacing traditional GPC columns with columns that enable lab
personnel to run experiments in less time and to generate less toxic
waste (mobile phase) would benefit any lab analyzing polyolefins. The
application of Waters HSPgel series columns can reduce both run time
and solvent consumption. With a single HSPgel (6.0x150 mm) column a
sample run may finish within 7 minutes at a flow rate of 0.6 ml/min.
The run time is ~5 X less and the solvent use per run is ~9 X less
compared with a traditional analysis on a bank of three columns
(7.8x300 mm). Using a cumulative matching calibration technique, the
GPC results from the HSPgel columns are reproducible and accurate. The
data shown here illustrate the usefulness of HSPgel HT series columns
for polyolefin samples.