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- Posts: 2
- Joined: Thu Dec 06, 2018 7:34 pm
Has anyone experienced significant API peak showing up in blanks?
Neat methanol and MilliQ water give same area of API peak.
This has not been solved by
1) needle , buffer loop wash
2) replacing vial - even 1st injection in fresh vial gives the peak
3)washing of column
4) replacing the column
5) not actually injecting from vial, but recording chromatogram of mobile phase. Peak still there.