3-硝基氯苯_单标_有机类_标准物质_萘析商城

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3-硝基氯苯

BW901132

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100mg

秦境

99.5%

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3-硝基氯苯介绍：

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-Chloro-3-nitrobenzene
Product Code	BW901132
Lot Number	23101513
CAS No.	121-73-3
Mol. Formula	C₆H₄ClNO₂
Mol. Weight	157.55
Certified on	30 Oct 2023
Expiry Date	29 Oct 2028
Storage Temp	20°C ± 4°C
Specification	100mg

CERTIFIED

Purity

CERTIFIED

Expanded Uncertainty (U)

Approved by

99.5%

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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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。

一、标准名称及标准号

GB/T 5750.8-2023

《生活饮用水标准检验方法第8部分：有机物指标》

二、适用范围

适用于生活饮用水及其水源水中3-硝基氯苯的检测，涵盖水样采集、前处理及仪器分析流程。

三、核心检测方法

气相色谱法（GC-ECD）：采用毛细管色谱柱分离，电子捕获检测器（ECD）定量检测，适用于痕量污染物分析。

四、检出限与定量限

方法检出限（MDL）为0.05 μg/L，定量限（LOQ）为0.2 μg/L，满足水质监测灵敏度要求。

五、质控样品要求

每批次样品需包含空白样、平行样及加标回收样，加标回收率应控制在80%-120%，RSD≤15%。

六、关键实验步骤

1. 水样预处理：液液萃取（正己烷为萃取剂）或固相萃取；
2. 浓缩净化：氮吹浓缩至0.5 mL，过0.22 μm滤膜；
3. 仪器分析：GC-ECD进样，程序升温分离，外标法定量。

七、特别说明

实验需在通风橱操作，避免3-硝基氯苯挥发暴露；废弃物按GB 8978-1996《污水综合排放标准》处置。

以上信息仅供参考，请以相应标准的原文为准！