LC-MS metabolomics · annotation

IPA Studio

Annotate untargeted LC-MS data in the browser. IPA Studio runs the Integrated Probabilistic Annotation pipeline on an XCMS/CAMERA feature set and lets you inspect the evidence behind every putative identification.

Welcome back: you'll return to the session you were using.

What you can do

Run the pipeline

Step through isotope mapping, adduct expansion, first-round annotation and the Gibbs sampler, checking the output at each stage.

Inspect every feature

Extracted ion chromatograms by sample group, pcgroup pseudospectra and candidate structures side by side.

Compare MS/MS spectra

Check measured fragmentation against reference spectra, and see which features may be in-source fragments.

Follow the evidence

See the adduct and fragment network that links features and shapes each posterior probability.

About this demo