Preparation and characterization of standard reference material 1849 infant/adult nutritional formula |
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| Authors: | Sharpless Katherine E Lindstrom Richard M Nelson Bryant C Phinney Karen W Rimmer Catherine A Sander Lane C Schantz Michele M Spatz Rabia O Thomas Jeanice Brown Turk Gregory C Wise Stephen A Wood Laura J Yen James H |
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| Affiliation: | National Institute of Standards and Technology, Analytical Chemistry Division, Gaithersburg, MD 20899-8390, USA. katherine.sharpless@nist.gov |
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| Abstract: | Standard Reference Material (SRM) 1849 Infant/Adult Nutritional Formula has been issued by the National Institute of Standards and Technology (NIST) as a replacement for SRM 1846 Infant Formula, issued in 1996. Extraction characteristics of SRM 1846 have changed over time, as have NIST's analytical capabilities. While certified mass fraction values were provided for five constituents in SRM 1846 (four vitamins plus iodine), certified mass fraction values for 43 constituents are provided in SRM 1849 (fatty acids, elements, and vitamins) and reference mass fraction values are provided for an additional 43 constituents including amino acids and nucleotides, making it the most extensively characterized food-matrix SRM available from NIST. |
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