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Messages - qz1234

2
XCMS / Multiple features for narrow RT range
Hello there,

We have a question in regards to XCMS feature selection.

Upon preprocessing of QTOF data XCMS spits out a results table that shows multiple features across very narrow bands of RT ranges.
For example 30 different features (though often closely related ones) at a RT of 4.3 minutes. Another 15 for 4.5 minutes etc...

We've tried various preprocessing settings, but this doesn't change feature selection dramatically.

What could be going wrong?
Thanks.