一般描述
One unit of SRM 3254 comprises five packets,each containing roughly 3 grams of leaf powder.
SRM 3254_cert
SRM 3254_SDS
SRM 3254_cert
SRM 3254_SDS
应用
Camellia sinensis (green tea) leaves standard reference material (SRM) is primarily intended to validate analytical methods for determining catechins, xanthine,and elemental composition in green tea leaves and similar matrices. Moreover,SRM 3254 can serve as a means of quality assurance for assigning values to in-house control materials. This SRM has also been analyzed for its DNA sequence.
特点和优势
- Available with a certificate documenting NIST-certified mass fraction value of catechins, xanthines, and elements reported on a dry mass basis.
- The reference values are reported as of mass fraction values for catechin, epicatechin, gallic acid, theanine, andother elements, all reported on a dry-mass basis.
- The certified value is metrological traceability to the SI derived unit for mass fraction (expressed as milligrams per gram).
- The NIST certificate is provided with expiration certificate, storage, handling,use, and maintenance instructions.
其他说明
Certified for the analytes listed below. See certificate for values and more details
Phytochemicals: (–)-Epicatechin, (–)-Epicatechin gallate, (–)-Epigallocatechin, (–)-Epigallocatechin gallate, (–)-Gallocatechin gallate, Caffeine, Theobromine, (+)-Catechin, (–)-Gallocatechin, Gallic acid, L-Theanine
Matrix Group: Botanicals
Phytochemicals: (–)-Epicatechin, (–)-Epicatechin gallate, (–)-Epigallocatechin, (–)-Epigallocatechin gallate, (–)-Gallocatechin gallate, Caffeine, Theobromine, (+)-Catechin, (–)-Gallocatechin, Gallic acid, L-Theanine
Matrix Group: Botanicals
法律信息
NIST is a registered trademark of National Institute of Standards and Technology
SRM is a registered trademark of National Institute of Standards and Technology
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