标准品/水中咖啡因||cas:58-08-2|西域试剂

标准品/水中咖啡因，500μg/mL

产品编号西域质检-TM53626

Cas号58-08-2

纯度/浓度500μg/mL

储存温度常温

规格￥105.00元

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商品信息
详细数据

基本信息

中文名称：标准品/水中咖啡因
英文名称：
CAS NO：58-08-2
分子式：
分子量：

Reference Material

This certificate is designed in accordance with ISO 17034 and ISO Guide 31. This reference material (RM) was designed,produced and verified in accordance with ISO/IEC 17025, ISO 17034 and a registered quality management system ISO 9001.

Product Name(产品名称) Caffeine in Water,500μg/mL(水中咖啡因)

Part Number(产品编号) 91047HL

Lot Number(产品批号) 23020001a

CAS No. 58-08-2

Mol. Formula(分子式) C₈H₁₀N₄O₂

Mol. Weight(分子量) 194.19____________________________________

Storage Temp(存储条件) (20±5)℃,Keep in the shade
常温(20±5)℃,置于阴凉处

QC Test Results
Item	Test Results
Analysis method(分析方法)	HPLC/DAD
Concentration(浓度)	500μg/mL
Relative Expanded Uncertainty(k=2)(相对扩展不确定度)	3%
Expiry Date(失效日期)	2024-Aug-05

Uncertainty

The certified value(s) and uncertainty(ies) are determined in accordance with ISO 17034 with an 95% confidence level (k=2). Uncertainty is based on the Total Combined Uncertainty, including uncertainties of preparation, purity of neat materials, homogeneity, stability testing.

Traceability

The balances used for gravimetric measurements are calibrated with weights traceable to the national standards. The calibration of the balances is verified annually by an external accredited calibration service. This analysis method has been verified using an approach consistent with ISO 17034:2016 & ISO 17025:2017.

CERTIFICATE ON	QC SIGNATURE
2023-Feb-06		RM Release