Metabolomics is the scientific study of chemical processes involving metabolites, the small molecule substrates, intermediates and products of metabolism. Specifically, metabolomics is the "systematic study of the unique chemical fingerprints that specific cellular processes leave behind", the study of their small-molecule metabolite profilesApplication of metabolomics to microbes, humans, animals and plants, Gene expression and profiling, Metabolite target analysis, Inborn errors of metabolism, Identification of toxins and pollutants, Databases, including collections of reference spectra, Novel sensors and instrumentation for detecting metabolites, Comparative integrated studies with transcriptomics and proteomics, Structural characterization of new metabolites, Chemometrics, Environmental metabolomics, Toxicity, Personalized medicine, Bioinformatics, Disease biomarkers, Network modeling, New analytical techniques (NMR, MS, FTIR), Drug discovery.