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2-硝基苯胺_88-74-4,邻硝基苯胺
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2-硝基苯胺

BW903038 {{goodObj.price > 0 ? '¥' + goodObj.price : '咨询'}} ¥{{goodObj.sell_price || 0}} 咨询 88-74-4 100mg {{goodObj.date}} 秦境 {{item.norm}} 97.6% {{inventory}}
2-硝基苯胺介绍:

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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相关国家标准解读:2-硝基苯胺(CAS:88-74-4)
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》
适用范围 适用于生活饮用水及其水源水中硝基苯类化合物(包括2-硝基苯胺)的测定。
核心检测方法 气相色谱-质谱联用法(GC-MS)。样品经固相萃取富集净化后,采用选择离子监测模式(SIM)定量分析。
检出限与定量限 检出限:0.02 μg/L;定量限:0.05 μg/L(以水样体积500 mL计)。
质控样品要求 每批次需至少包含1个空白样、1个平行样及1个加标回收样。加标回收率应控制在80%-120%。
关键实验步骤 1. 样品萃取:使用C18固相萃取柱;2. 洗脱溶剂:5 mL二氯甲烷;3. 色谱条件:DB-5MS毛细柱(30 m×0.25 mm×0.25 μm),程序升温从50℃至280℃。
特别说明 2-硝基苯胺对光敏感,样品需避光保存;实验过程中需严格控制pH值在6-8之间以避免分解。

以上信息仅供参考,请以相应标准的原文为准!