This repository contains an example workflow for preprocessing and preparation of an LC-MS/MS data set for feature-based molecular networking (FBMN) with GNPS2.
Analysis workflow
xcms-based preprocessing for FBMS with GNPS
This workflow explains preprocessing of a public LC-MS/MS data set with xcms and export of the results for feature-based molecular networking with GNPS.
π₯ a video recording of a presentation of this workshop is available at https://youtu.be/yc6fsegFg-k.
π Reproducibility & Usage
The workflow is available as pre-rendered webpage xcms4gnps. In addition, a docker image is available allowing to run the workflow interactively:
- If you donβt already have, install docker. Find installation information here.
- Get the docker image of this tutorial e.g.Β from the command line with:
docker pull jorainer/xcms4gnps2:latest
- Start the docker container, either through the Docker Desktop, or on the command line with
docker run -e PASSWORD=bioc -p 8787:8787 jorainer/xcms4gnps2:latest
- Enter
http://localhost:8787in a web browser and log in with usernamerstudioand passwordbioc. - In the RStudio server version: open any of the Quarto files in the vignettes folder and evaluate the R code blocks in that document.
π€ Contribution
Interested in contributing? Please check out the RforMassSpectrometry Contributions Guide.
π Code of Conduct
We follow the RforMassSpectrometry Code of Conduct to maintain an inclusive and respectful community.
π Acknowledgements

Part of this work is funded by the European Union under the HORIZON-MSCA-2021 project 101073062: HUMAN β Harmonising and Unifying Blood Metabolic Analysis Networks.
π Learn more: HUMAN Project Website