NIST Micronutrients Measurement Quality Assurance Program Winter, Spring, and Fall 1992 Comparability Studies: Results for Round Robins XXIV, XXV, and XXVI Fat-Soluble Vitamins and Carotenoids in Human Serum and Round Robin 3 Ascorbic Acid in Human Serum

Published

December 19, 2014

Author(s)

Jeanice M. Brown Thomas, Neal E. Craft, David L. Duewer, Kline Margaret, Sam A. Margolis, Willie E. May, 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 1992 MMQAP measurement comparability improvement studies: 1) Round Robin XXIV Fat-Soluble Vitamins and Carotenoids in Human Serum, 2) Round Robin XXV Fat-Soluble Vitamins and Carotenoids in Human Serum, 3) Round Robin XXVI Fat-Soluble Vitamins and Carotenoids in Human Serum, and 4) Round Robin 3 Ascorbic Acid in Human Serum. The materials for Round Robin XXIV were shipped to participants in January 1992; participants were requested to provide their measurement results by March 6, 1992. The materials for Round Robin XXV were shipped to participants in May 1992; participants were requested to provide their measurement results by June 26, 1992. The materials for Round Robin XXVI were shipped to participants in August 1992; participants were requested to provide their measurement results by October 16, 1992. The sample materials for Round Robin 3 were distributed in August 1992 with results due by September 26, 1992.

Citation

NIST Interagency/Internal Report (NISTIR) - 7880-32

Report Number

7880-32

NIST Pub Series

NIST Interagency/Internal Report (NISTIR)

Pub Type

NIST Pubs

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DOI Link

Keywords

Human Serum, Retinol, alpha-Tocopherol, gamma-Tocopherol, Total and Trans-beta-Carotene, Ascorbic Acid

Citation

Brown, J. , Craft, N. , Duewer, D. , Margaret, K. , Margolis, S. , May, W. and Sharpless, K. (2014), NIST Micronutrients Measurement Quality Assurance Program Winter, Spring, and Fall 1992 Comparability Studies: Results for Round Robins XXIV, XXV, and XXVI Fat-Soluble Vitamins and Carotenoids in Human Serum and Round Robin 3 Ascorbic Acid in Human Serum, NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/NIST.IR.7880-32 (Accessed October 9, 2025)