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Nistir 7894: NIST/NIH Vitamin D Metabolites Quality Assurance Program Report of Participant Results: summer 2012 comparability stud
U. S. Department of Commerce
(Author)
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Createspace Independent Publishing Platform
· Paperback
Nistir 7894: NIST/NIH Vitamin D Metabolites Quality Assurance Program Report of Participant Results: summer 2012 comparability stud - U. S. Department of Commerce
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Synopsis "Nistir 7894: NIST/NIH Vitamin D Metabolites Quality Assurance Program Report of Participant Results: summer 2012 comparability stud"
The National Institute of Standards and Technology (NIST) recently established a Vitamin D Metabolites Quality Assurance Program (VitDQAP) in collaboration with the National Institutes of Health (NIH) Office of Dietary Supplements. Participants in the sixth exercise of this program, the Summer 2012 Comparability Study, were asked to use the methodology of their choice to measure concentrations of 25-hydroxyvitamin D in control and study materials distributed by NIST. The study materials consisted of SRM 968e Fat-Soluble Vitamins, Carotenoids, and Cholesterol in Human Serum Level 1 and SRM 972a Vitamin D Metabolites in Human Serum Level 1 and Level 3. SRM 2972, which is comprised of separate ethanolic calibration solutions with known concentrations of 25(OH)D2 and 25(OH)D3, was provided as a control material. Participants provided their data to NIST, where it was compiled and evaluated for trueness relative to the NIST value and concordance within the participant community. A report of results was provided to all participants of the study, and laboratories were identified by code numbers known only to them. The results from this sixth study are reported along with a summary of the analytical methods used.
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The book is written in English.
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