Green Tea (Camellia sinensis) Leaves

This Standard Reference Material (SRM) is intended primarily for use in validating analytical methods for the determination of catechins, xanthines and elements in the leaves of green tea (Camellia sinensis) and similar matrices.

SRM 3254 can also be used for quality assurance when assigning values to in-house control materials.

This SRM has also been characterized for its DNA sequence. A unit of SRM 3254 consists of five packets, each containing approximately 3 g of leaf powder.

The development of SRM 3254 was a collaboration among the National Institute of Standards and Technology (NIST), the National Institutes of Health Office of Dietary Supplements (NIH-ODS), and the Food and Drug Administration Center for Drug Evaluation and Research (FDA CDER).

The addition of genetic information was accomplished through collaboration among NIST, NIH-ODS, the U.S. Department of Agriculture (USDA) Agricultural Research Service (ARS), AuthenTechnologies (Richmond, CA), and American Herbal Pharmacopoeia(Scotts Valley, CA).