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标准品/甲醇中D,L-α-生育酚

型号：91698b
类别：标准品
价格：

标准品/甲醇中D,L-α-生育酚/保质期6个月
产品编号：91698b
CAS号：10191-41-0
规格：1mL
有效期：2025-01-27
标准值：1000μg/mL

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Reference Material

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

Product Name(产品名称) DL-α-Tocopherol in Methanol,1000μg/mL(甲醇中D,L-α-生育酚)

Part Number(产品编号) 91698b

Lot Number(产品批号) -

Mol. Formula(分子式) C29H50O2

Mol. Weight(分子量) 430.71_________________

Storage Temp(存储条件) (2~8)℃,dark
冷藏(2~8)℃避光

QC Test Results
Item	Test Results
Analysis method(分析方法)	GC/FID
Concentration(浓度)	1000μg/mL
Relative Expanded Uncertainty(k=2)(相对扩展不确定度)	2%
Expiry Date(失效日期)	2025-Jan-27

Uncertainty

The certified value(s) and uncertainty(ies) are determined in accordance withISO 17034with 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 withISO 17034:2016&ISO 17025:2017.