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NIST Micronutrients Measurement Quality Assurance Program Winter, Spring, and Fall 1991 Comparability Studies: Results for Round Robins XXI, XXII, and XXIII Fat-Soluble Vitamins and Carotenoids in Human Serum

Published

Author(s)

Jeanice M. Brown Thomas, David L. Duewer, Margaret C. Kline, Katherine E. Sharpless, Willie E. May, Sam A. Margolis, Neal E. Craft

Abstract

The National Institute of Standards and Technology coordinates the Micronutrients Measurement Quality Assurance Program (MMQAP) for laboratories that measure fat- and water-soluble vitamins and carotenoids in human serum and plasma. This report describes the design of and results for the Winter, Spring and Fall 1991 MMQAP measurement comparability improvement studies: 1) Round Robin XXI Fat-Soluble Vitamins and Carotenoids in Human Serum, 2) Round Robin XXII Fat-Soluble Vitamins and Carotenoids in Human Serum, and 3) Round Robin XXIII Fat-Soluble Vitamins and Carotenoids in Human Serum. The materials for Round Robin XXI were shipped to participants in January 1991; participants were requested to provide their measurement results by March 1, 1991. The materials for Round Robin XXII were shipped to participants in May 1991; participants were requested to provide their measurement results by July 9, 1991. The materials for Round Robin XXIII were shipped to participants in August 1991; participants were requested to provide their measurement results by September 13, 1991.
Citation
NIST Interagency/Internal Report (NISTIR) - 7880-33
Report Number
7880-33

Keywords

Human serum, Retinol, alpha-Tocopherol, Total and Trans-beta-Carotene
Created September 29, 2015, Updated November 10, 2018