Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

NIST Micronutrients Measurement Quality Assurance Program Winter, Spring, and Fall 1993 Comparability Studies: Results for Round Robins XXVII, XXVIII, and XXIX Fat-Soluble Vitamins and Carotenoids in Human Serum and Round Robin 4 Ascorbic Acid in Human Se

Published

Author(s)

Jeanice M. Brown Thomas, 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 1993 MMQAP measurement comparability improvement studies: 1) Round Robin XXVII Fat-Soluble Vitamins and Carotenoids in Human Serum, 2) Round Robin XXVIII Fat-Soluble Vitamins and Carotenoids in Human Serum, 3) Round Robin XXIX Fat-Soluble Vitamins and Carotenoids in Human Serum, and 4) Round Robin 4 Ascorbic Acid in Human Serum. The materials for Round Robin XXVII were shipped to participants in January 1993; participants were requested to provide their measurement results by March 19, 1993. The materials for Round Robin XXVIII were shipped to participants in April 1993; participants were requested to provide their measurement results by June 14, 1993. The materials for Round Robin XXIX were shipped to participants in July 1993; participants were requested to provide their measurement results by August 30, 1993. The sample materials for Round Robin 4 were distributed in August 1993 with results due by September 15, 1993.
Citation
NIST Interagency/Internal Report (NISTIR) - 7880-31
Report Number
7880-31

Keywords

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

Citation

Brown, J. , Duewer, D. , Margaret, K. , Margolis, S. , May, W. and Sharpless, K. (2014), NIST Micronutrients Measurement Quality Assurance Program Winter, Spring, and Fall 1993 Comparability Studies: Results for Round Robins XXVII, XXVIII, and XXIX Fat-Soluble Vitamins and Carotenoids in Human Serum and Round Robin 4 Ascorbic Acid in Human Se, NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/NIST.IR.7880-31 (Accessed April 13, 2024)
Created December 19, 2014, Updated November 10, 2018