标准品/水中乳糖/2024国抽食品,63-42-3

63-42-3

￥300 1 起订

更新日期：2025-01-30

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中文名称：: 标准品/水中乳糖/2024国抽食品

CAS号：: 63-42-3

品牌：: TMstandard

库存：: ≥6

货期：: 现货

编号：: 93180x

标准值：: 20000μg/mL

过期日期：: 2025-08-27

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) D-Lactose in Water,20000μg/mL(水中乳糖)

Part Number(产品编号) 93180x

Lot Number(产品批号) -

CAS No. 63-42-3

Mol. Formula(分子式) C₁₂H₂₂O₁₁

Mol. Weight(分子量) 342.30__________

Storage Temp(存储条件) (2-8)℃
冷藏(2~8)℃

Transportation(运输条件) Normal temperature transportation(常温运输)

QC Test Results
Item	Test Results
Analysis method(分析方法)	HPLC/ELSD
Concentration(浓度)	20000μg/mL
Relative Expanded Uncertainty(k=2)(相对扩展不确定度)	1%
Expiry Date(失效日期)	2025-Aug-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.