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Application
The Standard Reference Material (SRM) is primarily intended for the validation of analytical methods used to determine catechins, xanthines, and elements in extracts of green tea (Camellia sinensis) and similar matrices. It can also be utilized for quality assurance, particularly when assigning values to in-house control materials.
Features and Benefits
Certified mass fraction values for catechins and xanthines are reported on a dry-mass basis and values are metrologically traceable to the SI unit of mass fraction (expressed as milligrams per gram).
Reference mass fraction values for epigallocatechin methylgallate, gallic acid, theanine, and theophylline and elements in green tea are provided.
Maintenance and expiration of SRM certificate, instructions for use and storage are provided on the NIST certificate.
General description
One unit of SRM 3255 comprises five packets, each containing approximately 1 g of extract. For more information, plese refer to the SDS and COA.
SRM 3255_cert
SRM 3255_SDS
Other Notes
Certified for the analytes listed below. See certificate for values and more details
Phytochemicals: (–)-Epicatechin, (–)-Epicatechin gallate, (–)-Epigallocatechin, (–)-Epigallocatechin gallate, (–)-Epigallocatechin methylgallate, (–)-Gallocatechin, (–)-Gallocatechin gallate, (+)-Catechin, Caffeine, Gallic acid, L-Theanine, Theobromine, Theophylline
Trace Elements: Aluminum (Al), Arsenic (As), Copper (Cu), Iron (Fe), Lead (Pb), Manganese (Mn), Zinc (Zn)
Matrix Group: Botanicals
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
