跳转至内容
Merck
CN

NIST3254

Camellia sinensis (green tea) leaves

NIST® SRM® 3254

登录 查看组织和合同定价。

选择尺寸

关于此项目

NACRES:
NA.24
UNSPSC Code:
41116107

主要文件

查看所有文档
技术服务
需要帮助？我们经验丰富的科学家团队随时乐意为您服务。
让我们为您提供帮助
技术服务
需要帮助？我们经验丰富的科学家团队随时乐意为您服务。
让我们为您提供帮助

产品名称

Camellia sinensis (green tea) leaves, NIST® SRM® 3254

grade

certified reference material

packaging

pkg of 5 x 3 g

manufacturer/tradename

NIST®

format

matrix material

Quality Level

100

相关类别

Application

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.

Features and Benefits

  • 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.

General description

One unit of SRM 3254 comprises five packets,each containing roughly 3 grams of leaf powder.



SRM 3254_cert

SRM 3254_SDS

Other Notes

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

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

存储类别

11 - Combustible Solids

法规信息

动植物来源培养基
此项目有

分析证书(COA)

输入产品批号来搜索 分析证书(COA) 。批号可以在产品标签上"批“ （Lot或Batch）字后找到。

已有该产品？

在文件库中查找您最近购买产品的文档。

访问文档库

我们的科学家团队拥有各种研究领域经验，包括生命科学、材料科学、化学合成、色谱、分析及许多其他领域.

联系客户支持