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环戊酮

BW901012

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120-92-3

1mL

秦境

97.1%

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环戊酮介绍：

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	Cyclopentanone
Product Code	BW901012
Lot Number	23041536
CAS No.	120-92-3
Mol. Formula	C₅H₈O
Mol. Weight	84.12
Certified on	20 Apr 2023
Expiry Date	19 Apr 2025
Storage Temp	20°C ± 4°C
Specification	1 mL

CERTIFIED

Purity

CERTIFIED

Expanded Uncertainty (U)

Approved by

97.1%

0.8%

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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本公司销售的所有产品仅供实验科研使用，不用于人体及临床诊断。

国家标准解读：GB 12373-1990《工作场所空气有毒物质测定酮类化合物》

标准名称及标准号	GB 12373-1990 工作场所空气有毒物质测定酮类化合物
适用范围	适用于工作场所空气中环戊酮等酮类化合物的采样、检测及浓度测定。
核心检测方法	活性炭管吸附-二硫化碳解吸-气相色谱法（GC-FID）。
检出限与定量限	检出限为0.5 μg/mL，定量限为1.5 μg/mL（以采样体积15L计）。
质控样品要求	每批次样品需包含空白对照、平行样及加标回收样，回收率应控制在85%-110%。
关键实验步骤	1. 采样流量设定为0.5 L/min，采样时间≤15min； 2. 解吸液需经0.45 μm滤膜过滤； 3. 色谱条件：DB-5毛细管柱，程序升温50℃→150℃。
特别说明	环戊酮易吸附于塑料材质，需使用玻璃采样管，且样品需在4℃下避光保存，7日内完成分析。

行业标准解读：HJ 834-2017《土壤和沉积物半挥发性有机物的测定气相色谱-质谱法》

标准名称及标准号	HJ 834-2017 土壤和沉积物半挥发性有机物的测定气相色谱-质谱法
适用范围	包含环戊酮的土壤及沉积物中半挥发性有机物的定性定量分析。
核心检测方法	索氏提取/加压流体萃取-GC-MS法，采用选择离子扫描模式（SIM）。
检出限与定量限	方法检出限为6.5 μg/kg，定量限为26 μg/kg（以干基计）。
质控样品要求	每20个样品需做1个实验室空白、1个基体加标样和1个平行样。
关键实验步骤	1. 样品需经无水硫酸钠脱水； 2. 萃取液浓缩至1.0 mL后过硅酸镁柱净化； 3. 质谱扫描范围设置为35-450 amu。
特别说明	环戊酮的保留时间需与标准物质偏差<0.1min，特征离子丰度比应在±30%范围内。

以上信息仅供参考，请以相应标准的原文为准！