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- Posts: 12
- Joined: Sun Nov 28, 2010 1:32 pm
I have been experienced a strange behavior in my recent work with polar pesticides (glyphosate without derivatization). The peak intensity decrease after each injection and disappears after the third injection. I have attempte various chromatographic conditions (HILIC, amide, DEA, IEX) but unsuccefully. Currently, I am following an application note using a DEA (waters) column in acid eluent. But still no more peak after 2-3 injections.
Have any of you experienced similar issues? I would greatly appreciate any feedback or suggestions on how to address this problem.
Thank you in advance.
Any feedback will be greatly appreciated!
Thank you very much