5%Carbowax 20M Carbopack B填充柱 氣相色譜法測定環(huán)境空氣和廢氣中的甲醇

。該法操作簡單,具有較好的靈敏度和的準確度,自動化程度高,可連續(xù)完成樣品的前處理、樣品進樣和色譜分析。


氣相色譜法測定環(huán)境空氣和廢氣中的甲醇  測試譜圖：




Determination of Methanol in Ambient Air and Waste Gas by Gas Chromatography
Determination of Methanol in Ambient Air and Exhaust Gas by Gas Chromatography Details:

Name: Packed Column

Chromatographic fixative: 5% polyethylene glycol
Carrier: graphite carbon black 80-120 mesh

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

Model: 5%Carbowax 20M Carbopack B

Application: HJ T33-1999 Determination of methanol in exhaust gas from stationary pollution sources by gas chromatography



The gas chromatographic analysis method of methanol in Chapter 5 of the book Air and Waste Gas Monitoring and Analysis Methods should solve the problems of long sampling time, low recovery efficiency and chromatographic separation in three aspects of tailing large water peaks.

Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. first used pure water as the absorption liquid to absorb methanol in the air, and then used headspace gas chromatography to analyze the methanol concentration in the absorption liquid, thus establishing an automatic headspace 5% Carbowax 20M Carbopack B. A method for the determination of methanol in air and waste gas by packed-column gas chromatography, and the automatic headspace injection conditions were optimized. The results show that when the sampling volume is 24 L and the absorption liquid volume is 5 mL, the minimum detection concentration of this method is 0.1 mg/m3, the relative standard deviation is 2.1%-5.3%, and the recovery rate of standard addition is 95%-108% . The method is simple to operate, has good sensitivity and reliable accuracy, and has a high degree of automation. It can continuously complete sample pretreatment, sample injection and chromatographic analysis.


Determination of methanol in ambient air and exhaust gas by gas chromatography Test spectrum: