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I am getting a residual peak in the analyses (mass analyser)

PostPosted: Fri 20 Mar 2015 08:56
by Interchim
I am getting a residual peak in the analyses, what should I do?

There are 2 possible causes for the appearance of a residual peak in your analyses:

A - Product trapped in the source capillary

Pass the make-up solvent for at least 2h. If the problem persists, clean the cone

B - Product trapped in the cone
Remove the cone and sonicate in methanol + formic acid