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正庚烷_142-82-5,正庚烷
圖片僅供參考，具體產品以實物為準！

正庚烷

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正庚烷介紹：

Method of Characterisation

GC/FID

Batch Information

Water Content: <0.1% (by Karl-Fischer-Titration)

Uncertainty

The certified value(s) and uncertainty(ies) aredetermined in accordance with ISO 17034 with an 95% confidence level (k=2).Uncertainty is based on the Total Combined Uncertainty, including uncertaintiesof characterisation, homogeneity and stability testing. Stability values are basedon real evidence opposed to simulation.

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

Intended Use

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

Safety

Proper precautions should be observed whilehandling. See Safety Data Sheet.

Traceability

The balances used for gravimetric measurements arecalibrated with weights traceable to the national standards (DKD). Thecalibration of the balances is verified daily internally and annually by anexternal7 accredited calibration service. Chromatographic methods are traceableto the International System of Units (SI).

Homogeneity

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

Storage

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

Instructions for use

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


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本公司銷售的所有產品僅供實驗科研使用，不用于人體及臨床診斷。
國家標準：《室內空氣質量標準》
標準名稱及標準號 GB/T 18883-2022《室內空氣質量標準》
適用范圍 適用于室內空氣中總揮發(fā)性有機物（TVOC）的檢測，包含正庚烷的組分測定。
核心檢測方法 氣相色譜法（GC），配備氫火焰離子化檢測器（FID）。
檢出限與定量限 檢出限為0.5 μg/m3，定量限為2.0 μg/m3（以正庚烷計）。
質控樣品要求 空白樣品平行分析相對偏差≤15%；加標回收率范圍80%-120%。
關鍵實驗步驟 活性炭管吸附采樣，二硫化碳解吸，GC-FID分離檢測。
特別說明 采樣時需控制環(huán)境溫濕度，避免其他揮發(fā)性有機物干擾。
行業(yè)標準：《環(huán)境空氣 苯系物的測定 固體吸附/熱脫附-氣相色譜法》
標準名稱及標準號 HJ 583-2010《環(huán)境空氣 苯系物的測定 固體吸附/熱脫附-氣相色譜法》
適用范圍 環(huán)境空氣中C6-C12揮發(fā)性有機物的測定，包括正庚烷。
核心檢測方法 固體吸附-熱脫附與氣相色譜聯(lián)用（TD-GC），適用非極性毛細管色譜柱。
檢出限與定量限 檢出限0.1 μg/m3，定量限0.3 μg/m3（標準采樣體積10 L）。
質控樣品要求 吸附管空白值≤目標物濃度的10%；全程樣品需至少保留10%平行樣。
關鍵實驗步驟 Tenax GR吸附管采集，二級熱脫附儀解吸，冷阱聚焦后進樣。
特別說明 熱脫附溫度需≤300℃，避免吸附管材料分解干擾。

以上信息僅供參考，請以相應標準的原文為準！
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