Development and certification of green tea-containing standard reference materials
Development and certification of green tea-containing standard reference materials
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DOI：
10.1007/s00216-011-5472-7
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发表时间：
2012-01-01
影响因子：
4.3
通讯作者：
Wise, S. A.
中科院分区：
文献类型：
--
作者：
Sander, L. C.;Bedner, M.;Wise, S. A.
美国国家标准与技术研究院（NIST）发布了一套三种含绿茶标准参考物质：SRM 3254茶树（绿茶）叶、SRM 3255茶树（绿茶）提取物和SRM 3256含绿茶固体口服剂型。这些材料的特点是含有儿茶素、黄嘌呤生物碱、茶氨酸和有毒元素。在NIST和合作实验室进行的测量中，使用了多达五种方法来为成分分配认证值和参考值。这些材料用于开发和验证新的分析方法，并作为控制材料作为支持计量可追溯性声明的组成部分。
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.