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NIST Micronutrients Measurement Quality Assurance Program Winter, Spring, and Fall 1990 Comparability Studies: Results for Round Robins XVIII, XIX, and XX Fat-Soluble Vitamins and Carotenoids in Human Serum

Published

Author(s)

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

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 1990 MMQAP measurement comparability improvement studies: 1) Round Robin XVIII Fat-Soluble Vitamins and Carotenoids in Human Serum, 2) Round Robin XIX Fat-Soluble Vitamins and Carotenoids in Human Serum, and 3) Round Robin XX Fat-Soluble Vitamins and Carotenoids in Human Serum. The materials for Round Robin XVIII were shipped to participants in January 1990; participants were requested to provide their measurement results by March 5, 1990. The materials for Round Robin XIX were shipped to participants in May 1990; participants were requested to provide their measurement results by July 6, 1990. The materials for Round Robin XX were shipped to participants in August 1990; participants were requested to provide their measurement results by October 22, 1990.
Citation
NIST Interagency/Internal Report (NISTIR) - 7880-34
Report Number
7880-34

Keywords

human serum, retinol, alpha-tocopherol, total and trans-beta-carotene
Created September 29, 2015, Updated November 10, 2018