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正丁醇

BW901112

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秦境

99.7%

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正丁醇介紹：

REFERENCE MATERIAL CERTIFICATE

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 ISO9001.

Product Name	1-Butanol
Product Code	BW901112
Lot Number	23091522
CAS No.	71-36-3
Mol. Formula	C₄H₁₀O
Mol. Weight	74.12
Certified on	13 Sep 2023
Expiry Date	12 Sep 2028
Storage Temp	20°C ± 4°C
Specification	1g

CERTIFIED

Purity

CERTIFIED

Expanded Uncertainty (U)

Approved by

99.7%

1.0%

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 characterisation, homogeneity and stability testing. Stability values are based on real evidence opposed to simulation.

The producer certifies that this reference material meets the specification stated in this certificate until the expiry date, provided it is stored unopened at the recommended temperature herein. Product warranties for this reference material are set out in the terms and conditions of purchase.

Intended Use

This RM is intended for use in a laboratory as a calibration and quality control standard or in method development for analytical techniques.

Safety

Proper precautions should be observed while handling. See Safety Data Sheet.

Traceability

The balances used for gravimetric measurements are calibrated with weights traceable to the national standards (DKD). The calibration of the balances is verified daily internally and annually by an external accredited calibration service. Chromatographic methods are traceable to the International System of Units (SI).

Homogeneity

Random replicate samples of the final packaged RM have been analysed to prove homogeneity compliant with ISO 17034.

Storage

The RM should be stored in the original sealed container at the indicated temperature.

Instructions for use

It is recommended to use 1 mg as the minimum sample size and if less material is used, to increase the certified uncertainty by a factor of two for half sample and four for a quarter of sample. If storage after opening is necessary, the RM should be tightly closed and kept from light and moisture. If the RM was in a sealed ampoule, it should be transferred to a vial with minimum head space.

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手機(jī)版：正丁醇

本公司銷售的所有產(chǎn)品僅供實(shí)驗(yàn)科研使用，不用于人體及臨床診斷。

1. 標(biāo)準(zhǔn)名稱及標(biāo)準(zhǔn)號(hào)

《工業(yè)用正丁醇》GB/T 339-2019

2. 適用范圍

適用于以羰基合成法或發(fā)酵法制得的工業(yè)用正丁醇的質(zhì)量控制，包括純度、水分、酸度及其他雜質(zhì)含量的檢測(cè)。

3. 核心檢測(cè)方法

氣相色譜法（GC）：通過色譜柱分離正丁醇與其他組分，氫火焰離子化檢測(cè)器（FID）定量分析主組分及雜質(zhì)含量。

4. 檢出限與定量限

雜質(zhì)組分（如異丁醇、仲丁醇）檢出限≤0.005%（質(zhì)量分?jǐn)?shù)），定量限≤0.01%（質(zhì)量分?jǐn)?shù)）；水分（卡爾·費(fèi)休法）定量限≤0.02%。

5. 質(zhì)控樣品要求

每批次樣品需包含平行樣，平行測(cè)定差值應(yīng)小于0.05%；使用有證標(biāo)準(zhǔn)物質(zhì)或加標(biāo)回收實(shí)驗(yàn)驗(yàn)證，回收率需在95%-105%范圍內(nèi)。

6. 關(guān)鍵實(shí)驗(yàn)步驟

樣品預(yù)處理：取1μL液體樣品直接進(jìn)樣，無需稀釋；色譜條件：毛細(xì)管柱（如HP-INNOWAX），柱溫程序從60℃升至200℃，載氣為高純氮?dú)猓魉?.0 mL/min。

7. 特別說明

若樣品含高沸點(diǎn)雜質(zhì)需提高終溫至240℃并延長保留時(shí)間；實(shí)驗(yàn)人員需佩戴防毒面具，正丁醇為易燃液體，需遠(yuǎn)離火源。

以上信息僅供參考，請(qǐng)以相應(yīng)標(biāo)準(zhǔn)的原文為準(zhǔn)！