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標準品/甲醇中D,L-α-生育酚

型號：91698b
類別：標準品
價格：

標準品/甲醇中D,L-α-生育酚/保質(zhì)期6個月
產(chǎn)品編號：91698b
CAS號：10191-41-0
規(guī)格：1mL
有效期：2025-01-27
標準值：1000μg/mL

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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(產(chǎn)品名稱) DL-α-Tocopherol in Methanol,1000μg/mL(甲醇中D,L-α-生育酚)

Part Number(產(chǎn)品編號)91698b

Lot Number(產(chǎn)品批號)-

Mol. Formula(分子式)C29H50O2

Mol. Weight(分子量)430.71_________________

Storage Temp(存儲條件)(2~8)℃,dark
冷藏(2~8)℃避光

QC Test Results
Item	Test Results
Analysis method(分析方法)	GC/FID
Concentration(濃度)	1000μg/mL
Relative Expanded Uncertainty(k=2)(相對擴展不確定度)	2%
Expiry Date(失效日期)	2025-Jan-27

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.