丁酸/保质期6个月,标准溶液,溶剂:水, 5000μg/mL
产品编号：西域质检-TM21116| CAS NO：107-92-6| 分子式：C4H8O2| 分子量：88.105
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丁酸/保质期6个月
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.
冷藏(2~8)℃,置于阴凉处
| QC Test Results | ||||
| Item | Test Results | |||
| Analysis method(分析方法) | HPLC/DAD | |||
| Concentration(浓度) | 5000μg/mL | |||
| Relative Expanded Uncertainty(k=2)(相对扩展不确定度) | 1% | |||
| Expiry Date(失效日期) | 2023-Oct-02 | |||
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.
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-Apr-03 |
|
RM Release |
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