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Thursday, October 11, 2018
at ACS Headquarters, joint meeting with CSW
Speaker: Melissa Phillips, NIST
Title: Application of Chromatography in the Development of Reference Materials for Foods and Dietary Supplements
Abstract: Since 1990, the National Institute of Standards and Technology (NIST) has provided matrix-based food reference materials intended to support measurements for nutrition labelling. These reference materials are used in method validation and quality control, which requires NIST to utilize higher order approaches for obtaining true results. The characterization of these reference materials was enabled through the development and use of novel separations of organic nutrients, such as fatty acids, water- and fat-soluble vitamins, and carotenoids. NIST also has a long-standing collaboration with the National Institutes of Health (NIH) Office of Dietary Supplements’ (ODS) Analytical Methods and Reference Materials (AMRM) Program. NIST supports the goals of the AMRM program by characterizing matrix-based dietary supplement reference materials for use in quality control, which often relies on development of unique extraction and separation approaches for each class of marker compounds in numerous botanical matrices. Most recently, NIST began expanding efforts in food safety beyond toxic metal measurements to include development of reference materials for arsenic speciation and mycotoxins and research into harmonization materials for protein food allergens and material authenticity. Each of these new areas requires development of new extraction, separation, and detection approaches. This presentation will highlight the use of separations to characterize various reference materials for dietary supplements, food nutrition, and food safety at NIST.
Bio: Melissa M. Phillips has been a research chemist in the Chemical Sciences Division at the National Institute of Standards and Technology (NIST) since 2008. She is involved in the certification efforts for food and dietary supplement Standard Reference Materials (SRMs) and is a coordinator of the Dietary Supplement Laboratory Quality Assurance Program (DSQAP), the Health Assessment Measurements Quality Assurance Program (HAMQAP), the Total Nutrients Quality Assurance Program (TNQAP), and the Food Reference Materials Program. Her interests include development of new analytical methods for the determination of marker compounds, vitamins, and contaminants in foods and dietary supplements, and improving the measurement capabilities of the food and dietary supplement communities using reference materials and quality assurance programs. Melissa obtained a B.S. in Chemistry, an M.S. in Forensic Chemistry, and a Ph.D. in Analytical Chemistry from Michigan State University. Melissa is a member of the AOAC INTERNATIONAL Official Methods Board and is a fellow of AOAC INTERNATIONAL.