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Below is a list of external websites and journals that provide informational and educational material as well as databases for assisting with metabolomics. 

Tutorials

• AB Sciex QTRAP 6500 General Concept
• SCIEX SelexION™ Technology
• Agilent 6400 Series Triple Quadrupole
• Ionization Techniques in Mass Spectrometry
• Introduction to Electron Impact Ionization and Fragmentation in Mass Spectrometry (GC-MS)

Databases

• ChemSpider
• HMDB
• KEGG
• MassBank
• Metlin
• PubChem

Mass Spectrometry Journals

• Analytical and Bioanalytical Chemistry
• Journal of The American Society for Mass Spectrometry
• Rapid Communication in Mass Spectrometry

Organizations

• American Society for Mass Spectrometry
• American Chemical Society
• Metabolomics Research Group
• Metabolomics Society

Companies

• AB Sciex
• Agilent
• Thermo Fisher

Outside Users

• The Ohio State University
• University of California, Berkeley
• Texas Woman's University