The EOHSI Analytical Chemistry Core Laboratory is a state-of-the-art chromatographic and mass spectrometric facility designed to support the Institute’s investigators and collaborators with methods development for assays of environmental contaminants or their metabolites. The Analytical Chemistry Core Laboratory specializes in the development and evaluation of novel analytical methodologies which may be applied to current and future EOHSI projects. The Analytical Chemistry Core Laboratory also provides expert consultation on sample collection and analysis, quality assurance, data interpretation, instrument acquisition, and sample preparation. Laboratory personnel are also responsible for the training of students on analytical instrumentation and sample analysis. The Analytical Chemistry Core Laboratory has both inorganic and organic capabilities.