20%PEG-20M/GCS880 AW DMCS+407有机担体填充柱 固定污染源排气中乙醛的测定HJ/T 35-1999

名称：填充柱
规格：2m*3mm（内径）
型号：20%PEG-20M/GCS880  AW DMCS（80-100目）

名称：填充柱

固定相：有机担体

粒度：80-100目，60-80目

规格：2m*4mm,2m*3mm ,2m*1*8

型号：407有机担体 

应用： HJ/T 35-1999 固定污染源排气中乙醛的测定 气相色谱法 


为改善直接进样法中高浓度盐对进样口、色谱柱和检测器的污染,降低检出限。
方法:浩瀚色谱（山东）应用技术开发有限公司建立了顶空气相色谱法测定空气和废气中乙醛的方法,并对色谱条件和顶空进样条件进行了优化。
结果:该方法的检出限1.0μg,当采样体积为100 L时,方法检出浓度为0.01 mg/m3,室内相对标准偏差为1.6%~5.0%,加标回收率为95.2%~101.0%。
结论:该方法有效地避免了直接进样法中高浓度盐对进样口、色谱柱乃检测器的污染,并且大大降低了检出限,方法的性和可操作性令人满意。

固定污染源排气中乙醛的测定HJ/T 35-1999  测试谱图：



Determination of acetaldehyde in exhaust gas from stationary pollution sources HJ/T 35-1999
Determination of acetaldehyde in exhaust gas from stationary pollution sources HJ/T 35-1999 Details:

Name: Packed Column
Specifications: 2m*3mm (inner diameter)
Model: 20%PEG-20M/GCS880 AW DMCS (80-100 mesh)





Name: Packed Column

Stationary Phase: Organic Support

Particle size: 80-100 mesh, 60-80 mesh

Specifications: 2m*4mm, 2m*3mm, 2m*1*8

Model: 407 organic carrier

Application: HJ/T 35-1999 Determination of Acetaldehyde in Exhaust Gas from Stationary Pollution Source Gas Chromatography


In order to improve the contamination of the injection port, chromatographic column and detector with high concentration of salt in the direct injection method, the detection limit was lowered.
Methods: Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. established a method for the determination of acetaldehyde in air and waste gas by headspace gas chromatography, and optimized the chromatographic conditions and headspace injection conditions.
Results: The detection limit of this method was 1.0 μg. When the sampling volume was 100 L, the detection concentration of the method was 0.01 mg/m3, the indoor relative standard deviation was 1.6%~5.0%, and the recovery rate of standard addition was 95.2%~101.0%. .
Conclusion: This method effectively avoids the contamination of the injection port, chromatographic column and even the detector caused by high-concentration salt in the direct injection method, and greatly reduces the detection limit. The reliability and operability of the method are satisfactory.

Determination of acetaldehyde in exhaust gas from stationary pollution sources HJ/T 35-1999 Test spectrum: