Description of Material & Intended Use
The certified reference material is mainly used for the component detection of relevant alkaloid in the field of medicine, foodstuff etc. It is also used for the calibration of analytical instrument , the validation of analytical method,  the measuring quality control etc.

Certified values and uncertainties

Sample number	Name	Certified value (%)	Relative expanded uncertainty (%) (k=2)
GBE（C）100063	Certified Reference Material of Purity of Caffeine	99.8	0.2

 
The uncertainty inducted by the certified result of principle purity is in consideration in evaluation of uncertainty of this CRM.
 

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ECALBIO CO., LTD
Tel: 86-27-87745856
Email:info@ecalbio.com
HZAU, Guanshan Road , Wuhan City, China
 

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ECALBIO CO.,LTD

HZAU, Luoshi road, Wuhan 430060, China
Tel:86-27-87745856
Email:info@ecalbio.com
Website: www.ecalbio.com