General description

This Standard Reference Material (SRM) is intended primarily for use in validating analytical methods for the determination of catechins, xanthines, and toxic elements in solid oral dosage forms containing green tea and in similar matrices. SRM 3256 can also be used for quality assurance when assigning values to in-house control materials. A unit of SRM 3256 consists of five packets, each containing approximately 2.5 g of powdered material. For more information, please refer to the SDS and COA.SRM 3256_cert SRM 3256 _SDS

Legal Information

NIST is a registered trademark of National Institute of Standards and Technology

SRM is a registered trademark of National Institute of Standards and Technology

Other Notes

Certified for the analytes listed below. See certificate for values and more detailsPhytochemicals: (–)-Epicatechin, (–)-Epicatechin gallate, (–)-Epigallocatechin, (–)-Epigallocatechin gallate, (–)-Gallocatechin, (–)-Gallocatechin gallate, (–)-Gallocatechin gallate, (+)-Catechin, caffeine, Gallic acid, L-Theanine, Theobromine, TheophyllineTrace Metals: Arsenic (As), Cadmium (Cd), Lead (Pb), Mercury (Hg)Matrix Group: Botanicals