EPA 3640 GPC Cleanup Column
Posted: Thu Nov 02, 2006 4:14 pm
Greetings,
I would like to hear from folks who conduct EPA 3640 GPC cleanup. What column do you use?
We had been using an Envirosep ABC column, but had enormous trouble obtaining a new one when the old column was trashed by some bad samples. When we finally received a new column it was bad, appears to have been improperly packed, probably exhibiting channeling, and won't pass the method calibration criteria.
I now have a low pressure glass column. Seems like a step backwards, but maybe this is really the best thing for this method, and thus my question.
What GPC cleanup column do you use?
Thanks,
Evan L. Cooper
I would like to hear from folks who conduct EPA 3640 GPC cleanup. What column do you use?
We had been using an Envirosep ABC column, but had enormous trouble obtaining a new one when the old column was trashed by some bad samples. When we finally received a new column it was bad, appears to have been improperly packed, probably exhibiting channeling, and won't pass the method calibration criteria.
I now have a low pressure glass column. Seems like a step backwards, but maybe this is really the best thing for this method, and thus my question.
What GPC cleanup column do you use?
Thanks,
Evan L. Cooper