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- Posts: 880
- Joined: Fri Jan 04, 2008 3:03 pm
I thought the problem would be solved by replacing the columns ( DB-XLB + DB-35MS), but it didn't change much.
We use MTBE and derivatize for 210 minutes at just over 50C on a hot block, and quench with 4 mls. of saturated bicarbonate.
Any insights as to how to resolve this issue?
Thanks
Bear