Determination of ephedrine alkaloids in dietary supplement standard reference materials

From National Research Council Canada

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DOIResolve DOI: http://doi.org/10.1021/ac0484530
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Name affiliation
  1. National Research Council Canada. NRC Institute for National Measurement Standards
TypeArticle
Journal titleAnalytical Chemistry
ISSN0003-2700
Volume77
Issue10
Pages3101–3112; # of pages: 12
Abstract
A suite of five ephedra-containing dietary supplement Standard Reference Materials (SRMs) has been issued by the National Institute of Standards and Technology (NIST) with certified values for ephedrine alkaloids, synephrine, caffeine, and selected toxic trace elements. The materials represent a variety of natural, extracted, and processed sample matrixes that provide different analytical challenges. The constituents have been determined by multiple independent methods with measurements performed by NIST and by three collaborating laboratories. The methods utilized different sample extraction and cleanup steps in addition to different instrumental analytical techniques and approaches to quantification. In addition, food−matrix proximates were determined by National Food Processor Association laboratories for one of the ephedra-containing SRMs. The SRMs are primarily intended for method validation and for use as control materials to support the analysis of dietary supplements and related botanical materials.
Publication date
LanguageEnglish
Peer reviewedYes
Identifier10308271
NRC number1949
NPARC number5764712
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Record identifier68738421-88a3-41a8-a33c-27e13cf9b02b
Record created2009-03-29
Record modified2016-05-09
Date modified:
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