叔戊醇_单标_有机类_标准物质_萘析商城

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叔戊醇

BW901073

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75-85-4

0.5mL

秦境

99.5%

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叔戊醇介绍：

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.

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 external7 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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国家标准GB/T 23986-2023《色漆和清漆挥发性有机化合物(VOC)含量的测定气相色谱法》

标准名称及标准号	GB/T 23986-2023《色漆和清漆挥发性有机化合物(VOC)含量的测定气相色谱法》
适用范围	适用于色漆、清漆及相关产品中挥发性有机化合物（VOC）含量的测定，包括叔戊醇等有机溶剂的检测。
核心检测方法	气相色谱法（GC），通过样品中VOC的分离和定量，采用内标法或外标法分析目标化合物。
检出限与定量限	检出限为0.01%（质量分数），定量限为0.05%（质量分数），需通过校准曲线验证线性范围。
质控样品要求	每批次需包含空白样品、平行样品及加标回收样品，加标回收率应控制在80%-120%。
关键实验步骤	1. 样品预处理：蒸馏或顶空进样； 2. 色谱条件：毛细管柱（极性或非极性）及程序升温； 3. 数据采集与分析。
特别说明	叔戊醇与类似沸点的溶剂需优化色谱条件以实现有效分离，必要时使用质谱（GC-MS）确认。

行业标准《固定污染源废气挥发性有机物的测定固相吸附-热脱附/气相色谱-质谱法》

标准名称及标准号	HJ 734-2014《固定污染源废气挥发性有机物的测定固相吸附-热脱附/气相色谱-质谱法》
适用范围	适用于固定源废气中挥发性有机物（如叔戊醇）的定性及定量检测。
核心检测方法	固相吸附管富集目标物后热脱附，结合气相色谱-质谱联用技术（GC-MS）进行检测。
检出限与定量限	检出限为0.1 mg/m³，定量限为0.3 mg/m³，需根据采样体积调整灵敏度。
质控样品要求	每批样品需包含现场空白、运输空白及实验室空白，标准曲线相关系数≥0.995。
关键实验步骤	1. 样品采集与保存； 2. 热脱附参数优化； 3. 质谱数据库匹配与定量离子选择。
特别说明	叔戊醇需避免与其他醇类物质干扰，建议采用选择离子扫描（SIM）模式提高准确性。

以上信息仅供参考，请以相应标准的原文为准！