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环戊酮

BW901012

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120-92-3

0.5mL

秦境

99.5%

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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	23041211
CAS No.	120-92-3
Mol. Formula	C₅H₈O
Mol. Weight	84.12
Certified on	17 Apr 2023
Expiry Date	16 Apr 2025
Storage Temp	(0~4)°C
Specification	0.5mL

CERTIFIED

Purity

CERTIFIED

Expanded Uncertainty (U)

Approved by

99.5%

0.5%

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。

环戊酮相关检测标准解读

1. 标准名称及标准号

标准名称	《环境空气挥发性有机物的测定罐采样/气相色谱-质谱法》
标准号	HJ 759-2015

2. 适用范围

本标准适用于环境空气和无组织排放废气中环戊酮等挥发性有机物（VOCs）的测定，检测浓度范围为0.5 μg/m³至100 μg/m³。

3. 核心检测方法

使用罐采样结合气相色谱-质谱联用（GC-MS）技术，通过内标法定量分析。目标物通过低温富集、热脱附和色谱分离后，以质谱检测器进行定量。

4. 检出限与定量限

检出限（LOD）	0.2 μg/m³
定量限（LOQ）	0.5 μg/m³

5. 质控样品要求

① 每批次样品需包含实验室空白和现场空白，空白值应低于LOQ；
② 加入内标（如氟代苯类化合物）进行回收率验证，回收率需在75%-125%范围；
③ 定期使用有证标准物质（CRM）进行仪器校准。

6. 关键实验步骤

① 样品采集：使用经惰性化处理的苏玛罐采集空气样品；
② 预浓缩：通过三级冷阱富集目标化合物；
③ 色谱条件：使用DB-624色谱柱（60 m × 0.32 mm × 1.8 μm），程序升温从35℃至220℃；
④ 质谱参数：采用全扫描模式（m/z 35-300），通过特征离子（如环戊酮m/z 84、55）定量。

7. 特别说明

① 采样时需避免温度高于40℃或湿度＞90%的环境；
② 色谱分析时需注意与结构类似物（如环己酮）的分离；
③ 报告结果时需注明是否扣除空白值及数据修约规则（至少保留两位有效数字）。

以上信息仅供参考，请以相应标准的原文为准！