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.

Dietary Supplement Laboratory Quality Assurance Program: Exercise 1 Final Report

Published

Author(s)

Carolyn Burdette, Hugh Hayes, Jenna Klingsick, Colleen E. Bryan Sallee, Charles Barber, Steven J. Christopher, Lee L. Yu

Abstract

The DSQAP was launched, in collaboration with the NIH ODS, in 2007. The program was established to enable laboratories to improve the accuracy of measurements in samples for nutrients, marker compounds, toxic elements, and/or contaminants in dietary supplement ingredients and finished products. Exercise 1 was designed with 7 studies, offering the opportunity for laboratories to assess their in house techniques on a variety measurements. Studies included determinations of select toxic and nutritional elements, vitamins, contaminants, and proximates in kelp, polyphenol content in kelp and green tea, water-soluble vitamins in meal replacement drink formulations, and botanical marker compounds in dietary supplement ingredient materials and finished products. This report summarizes the results, describes observations, and provides technical recommendations for measurement improvements.
Citation
NIST Interagency/Internal Report (NISTIR) - 8494
Report Number
8494

Keywords

Botanicals, Consumer Safety, Dietary Supplements, Kelp, Quality Assurance, Reference Materials

Citation

Burdette, C. , Hayes, H. , Klingsick, J. , Bryan Sallee, C. , Barber, C. , Christopher, S. and Yu, L. (2023), Dietary Supplement Laboratory Quality Assurance Program: Exercise 1 Final Report, NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/NIST.IR.8494, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=956821 (Accessed June 21, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created November 1, 2023