原标准规定了工作场所空气中醇胺类化合物（如乙醇胺）浓度的测定方法，主要采用液体吸收-气相色谱法：
原理：使用硫酸溶液吸收空气中的乙醇胺，经气相色谱仪分离，用氮磷检测器（NPD）检测。
采样：串联两支各装5.0 mL 0.01mol/L硫酸溶液的大型气泡吸收管，以500 mL/min流量采集15分钟空气样品。
色谱参考条件：
色谱柱：未指定具体型号（原标准可能使用填充柱，但注明可使用毛细管柱）
柱温：160℃
汽化室温度：250℃
检测室温度：250℃
载气（氮气）流量：40 mL/min 7
性能指标：
检出限：3×10⁻⁴ μg/mL
最低检出浓度：2×10⁻⁴ mg/m³（按采集7.5L空气样品计）
测定范围：3×10⁻⁴ ～ 0.1 μg/mL
相对标准偏差：5.9%～6.7%
平均采样效率：99% 7
浩瀚色谱（山东）应用技术开发有限公司，研制的《场所空气中乙醇胺测定玻璃色谱柱应用岛津》，安装在安捷伦，岛津，赛默飞，瓦里安，布鲁克，PE, 磐诺，
天瑞，天美，科创，鲁南瑞虹，上分，捷岛/科晓，川仪上，测定空气中的乙醇胺柱效高，分离良好，峰型对称，结果满意。
色谱柱：1.6m×3mm 玻璃柱，树脂键合相–聚乙二醇丁二酸；
树脂键合相–聚乙二醇丁二酸，色谱固定相，80 目～100 目。
GBZ/T 300.139-2017 工作场所空气有毒物质测定 第139部分：乙醇胺
本标准代替GBZ/T 160.70-2004 工作场所空气有毒物质测定 醇胺类化合物
GBZ/T 300的本部分规定了工作场所空气中乙醇胺的溶液吸收-气相色谱法。
本部分适用于工作场所空气中蒸气态乙醇胺浓度的检测。
The original standard specifies the method for determining the concentration of alcohol amine compounds (such as ethanolamine) in the air of the workplace, mainly using liquid absorption gas chromatography:
Principle: Ethanolamine in the air is absorbed by sulfuric acid solution, separated by gas chromatography, and detected by nitrogen phosphorus detector (NPD).
Sampling: Connect two large bubble absorption tubes each containing 5.0 mL of 0.01mol/L sulfuric acid solution, and collect air samples at a flow rate of 500 mL/min for 15 minutes.
Chromatographic reference conditions:
Chromatographic column: No specific model specified (the original standard may use packed columns, but it states that capillary columns can be used)
Column temperature: 160 ℃
Vaporization chamber temperature: 250 ℃
Testing room temperature: 250 ℃
Carrier gas (nitrogen) flow rate: 40 mL/min 7
Performance indicators:
Detection limit: 3 × 10 ⁻⁴ μ g/mL
Minimum detectable concentration: 2 × 10 ⁻⁴ mg/m ³ (based on the collection of 7.5L air sample)
Measurement range: 3 × 10 ⁻⁴~0.1 μ g/mL
Relative standard deviation: 5.9% to 6.7%
Average sampling efficiency: 99% 7
Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. has developed the "Application of Shimadzu Glass Chromatography Column for Determination of Ethanolamine in Workplace Air", which has been installed in Agilent, Shimadzu, Thermo Fisher, Varian, and Bruker, PE, Panno,
Tianrui, Tianmei, Kechuang, Lunan Ruihong, Shangfen, Jiedao/Kexiao, Chuanyi, determined ethanolamine in the air with high column efficiency, good separation, symmetrical peak shape, and satisfactory results.
Chromatography column: 1.6m × 3mm glass column, resin bonded phase - polyethylene glycol succinic acid;
Resin bonded phase - polyethylene glycol succinic acid, chromatographic stationary phase, 80-100 mesh.
GBZ/T 300.139-2017 Determination of Toxic Substances in Workplace Air Part 139: Ethanolamine
This standard replaces GBZ/T 160.70-2004 for the determination of toxic substances in workplace air - alcoholamine compounds
This section of GBZ/T 300 specifies the solution absorption gas chromatography method for ethanolamine in workplace air.
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