Development and certification of green tea-containing standard reference materials
| Autor: | John L. Molloy, Karen E. Murphy, Mark C Roman, Stephen A. Wise, Stephen E. Long, James H. Yen, Agnes Nguyenpho, Michael C. Tims, Mary Bedner, Steven J. Christopher, Rachel A. Lieberman, David L. Duewer, Brian E. Lang, Laura J. Wood, Katherine E. Sharpless, Joseph M. Betz, M. J. Payne, Lane C. Sander, Barbara J. Porter, Rusty D. Day |
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| Rok vydání: | 2011 |
| Předmět: |
Tea
Metrological traceability food and beverages Certification Reference Standards Theanine Green tea Pulp and paper industry Biochemistry Camellia sinensis Analytical Chemistry chemistry.chemical_compound Xanthine alkaloids chemistry Reference values Environmental chemistry NIST Environmental science Food Analysis |
| Zdroj: | Analytical and bioanalytical chemistry. 402(1) |
| ISSN: | 1618-2650 |
| Popis: | A suite of three green tea-containing Standard Reference Materials (SRMs) has been issued by the National Institute of Standards and Technology (NIST): SRM 3254 Camellia sinensis (Green Tea) Leaves, SRM 3255 Camellia sinensis (Green Tea) Extract, and SRM 3256 Green Tea-Containing Solid Oral Dosage Form. The materials are characterized for catechins, xanthine alkaloids, theanine, and toxic elements. As many as five methods were used in assigning certified and reference values to the constituents, with measurements carried out at NIST and at collaborating laboratories. The materials are intended for use in the development and validation of new analytical methods, and for use as control materials as a component in the support of claims of metrological traceability. |
| Databáze: | OpenAIRE |
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