Chromatography Forum

Looking for mixed mode High Temperature (150C) GPC column? Please advise.

the mostly relevant detaisl to know is the nature of your samples?
and the MW range you are interested to work at

viscotek/malvern have a high temp GPC system, so they also have the columns to work with it
i know also polyanalytik that has high temp GPC columns
both companies have mixed beds columns

is this for polyolefins?

from experience if you have 2 very different narrow species then you can use the mixed beds, but if you expect several broad compounds, then it is best to use several columns in series, each specific for the range of each compound, you results will be far mor precise

Thank you, unmgvar,
Yes, it is for pollyolefines. Which set of columns do you recommend to cover a range 500 - 1000000 Da?

What is the max temperature you want to operate? I agree with unmgvar, maybe a series of 3 columns you will end up. Above 145°C are also HT columns available, also mixed bed columns. Have a look also at Waters, Phenomenex, Shodex and Jordi. Good luck.