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Description
This Standard Reference Material (SRM) and its associated certified values are intended primarily for use in calibration of instruments and techniques used for the determination of the metabolites 25-hydroxyvitamin D2 and 25-hydroxyvitamin D3. A unit of SRM 2972b consists of fifteen two-milliliter ampoules, of three separate ethanolic solutions of individual vitamin D metabolites, five ampoules of each solution. Each two-milliliter ampoule contains approximately 1.2 mL of solution. /// Sample value(s) - please ask for current certificate.
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Product data sheet
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NIST provides over 1300 Standard Reference Materials® as well as articles and practice guides describing the development, analysis and use of SRMs.
NIST Standard Reference Materials are used by analytical laboratories in industry, academia and government in order to facilitate commerce and trade and to advance research and development. The SRMs are produced by the engineering laboratory, the material measurement laboratory, and the physical measurement laboratory at NIST. They are available for chemical composition, physical properties, and engineering materials.