RESUMO
Standard Reference Material 3280 Multivitamin/ Multielement Tablets was issued by the National Institute of Standards and Technology in 2009, and has certified and reference mass fraction values for 13 vitamins, 26 elements, and two carotenoids. Elements were measured using two or more analytical methods at NIST with additional data contributed by collaborating laboratories. This reference material is expected to serve a dual purpose: to provide quality assurance in support of a database of dietary supplement products and to provide a means for analysts, dietary supplement manufacturers, and researchers to assess the appropriateness and validity of their analytical methods and the accuracy of their results.
Assuntos
Química Farmacêutica/normas , Suplementos Nutricionais/análise , Suplementos Nutricionais/normas , Vitaminas/análise , Carotenoides/análise , Química Farmacêutica/métodos , Controle de Qualidade , Padrões de Referência , Reprodutibilidade dos Testes , Comprimidos , Estados Unidos , Vitaminas/químicaRESUMO
Furan is a 5-member ring chemical with high volatility. Because it is highly volatile, furan levels in foods are not easily determined with accuracy. In this study, an analytical method for furan analysis using an automated solid-phase microextraction system in combination with gas chromatography/mass spectroscopy is described. The performance of the method was demonstrated by the results obtained from a variety of coffees. Furan was detected at part-per-billion levels in coffee. The limit of detection was 0.3 ng/g and limit of quantitation, 0.8 ng/g. The percent recoveries were between 92 and 102.
