title: Dietary supplement laboratory quality assurance program: the first five exercises.
abstract: The National Institute of Standards and Technology (NIST) has established a Dietary Supplement Laboratory Quality Assurance Program (DSQAP) in collaboration with the National Institutes of Health Office of Dietary Supplements. Program participants measure concentrations of active and/or marker compounds as well as nutritional and toxic elements in food and dietary supplements distributed by NIST. Data are compiled at NIST, where they are analyzed for accuracy relative to reference values and concordance among the participants. Performance reports and certificates of completion are provided to participants, which can be used to demonstrate compliance with current Good Manufacturing Practices as promulgated by the U.S. Food and Drug Administration. The DSQAP has conducted five exercises to date, with total participation including more than 75 different laboratories and many more individual analysts.
authors.affiliation: National Institute of Standards and Technology, Analytical Chemistry Division, Material Measurement Laboratory, Gaithersburg, MD 20899-8392, USA. melissa.phillips@nist.gov
authors.forename: Melissa M
authors.initials: MM
authors.lastname: Phillips
authors.forename: Catherine A
authors.initials: CA
authors.lastname: Rimmer
authors.forename: Laura J
authors.initials: LJ
authors.lastname: Wood
authors.forename: Katrice A
authors.initials: KA
authors.lastname: Lippa
authors.forename: Katherine E
authors.initials: KE
authors.lastname: Sharpless
authors.forename: David L
authors.initials: DL
authors.lastname: Duewer
authors.forename: Lane C
authors.initials: LC
authors.lastname: Sander
authors.forename: Joseph M
authors.initials: JM
authors.lastname: Betz
mesh_terms: D019587:Dietary Supplements / Q000032:analysis* / Q000592:standards*; D005227:Fatty Acids / Q000737:chemistry / Q000592:standards; D005504:Food Analysis / Q000592:standards; D007753:Laboratories / Q000592:standards*; D028321:Plant Preparations / Q000737:chemistry* / Q000592:standards; D011786:Quality Control; D014481:United States; D014815:Vitamins / Q000737:chemistry*
chemical_list: D005227:Fatty Acids; D028321:Plant Preparations; D014815:Vitamins