名稱：填充柱
規(guī)格：2m*3mm（內(nèi)徑）
型號(hào)：20%PEG-20M/GCS880  AW DMCS（80-100目）

名稱：填充柱

固定相：有機(jī)擔(dān)體

粒度：80-100目，60-80目

規(guī)格：2m*4mm,2m*3mm ,2m*1*8

型號(hào)：407有機(jī)擔(dān)體 

應(yīng)用： HJ/T 35-1999 固定污染源排氣中乙醛的測定 氣相色譜法 


為改善直接進(jìn)樣法中高濃度鹽對(duì)進(jìn)樣口、色譜柱和檢測器的污染,降低檢出限。
方法:浩瀚色譜（山東）應(yīng)用技術(shù)開發(fā)有限公司建立了頂空氣相色譜法測定空氣和廢氣中乙醛的方法,并對(duì)色譜條件和頂空進(jìn)樣條件進(jìn)行了優(yōu)化。
結(jié)果:該方法的檢出限1.0μg,當(dāng)采樣體積為100 L時(shí),方法檢出濃度為0.01 mg/m3,室內(nèi)相對(duì)標(biāo)準(zhǔn)偏差為1.6%~5.0%,加標(biāo)回收率為95.2%~101.0%。
結(jié)論:該方法有效地避免了直接進(jìn)樣法中高濃度鹽對(duì)進(jìn)樣口、色譜柱乃檢測器的污染,并且大大降低了檢出限,方法的性和可操作性令人滿意。

固定污染源排氣中乙醛的測定HJ/T 35-1999  測試譜圖：



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: