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頂空-氣相色譜法測定環境空氣和廢氣中的甲醇
頂空-氣相色譜法測定環境空氣和廢氣中的甲醇詳細信息：

本標準規定了測定環境空氣和廢氣中甲醇的頂空/氣相色譜法。本標準適用于環境空氣、無組織排放監控點空氣和固定污染源有組織排放廢氣中甲醇的測定。環境空氣和無組織排放監控點空氣采樣體積為 20 L，進樣量為 1.0 mL 時，方法檢出限為 0.05 mg/m3，測定下限為 0.2 mg/m3；固定污染源有組織排放廢氣采樣體積為 10 L，進樣量為 1.0 mL 時，方法檢出限為 0.1 mg/m3，測定下限為 0.4 mg/m3。

浩瀚色譜(山東)應用技術開發有限公司,采用聚乙二醇20M建立了用純水直接吸收環境空氣或工業廢氣中的甲醇，采用頂空進樣，氣相色譜進行定性定量測定。該方法最低檢出質量濃度為0．590mg·m^-3相對標準偏差在4.8％-7．2％之間，加標回收率在89％～115％之間。結果表明，方法簡單靈敏，線性范圍良好，檢出限低，精密度好，定性定量準確；經實際樣品測定，完全滿足環境空氣和廢氣中甲醇的監測要求。

名稱：毛細管柱
固定相：聚乙二醇
規格：30m*0.53mm*1um
型號：PEG-20M/HH-WAX
應用：環境空氣和廢氣 甲醇的測定 頂空/氣相色譜法

適用于：

安捷倫490在線/便攜，4890,5890,6890,7820,7890,8860,8890

島津GC-14C，GC-2010，GC-2014，GC-2030

賽默飛1310,1300,1610,1600

瓦里安3800系列

布魯克PE580,590,680,690

磐諾A90，福立GC9790，華愛，天瑞，天美，GC7900，川儀，北分瑞利，東西電子，魯南瑞虹，捷島/科曉

頂空-氣相色譜法測定環境空氣和廢氣中的甲醇 圖片：






Determination of Methanol in Ambient Air and Exhaust Gases by Headspace-Gas Chromatography
Determination of Methanol in Ambient Air and Exhaust Gas by Headspace-Gas Chromatography: Detailed Information

This standard specifies the headspace/gas chromatography method for determining methanol in ambient air and waste gases. It applies to the determination of methanol in ambient air, air at unorganized emission monitoring points, and waste gases from fixed pollution sources with organized emissions. For ambient air and air at unorganized emission monitoring points, with a sampling volume of 20 L and an injection volume of 1.0 mL, the method detection limit is 0.05 mg/m3 and the measurement limit is 0.2 mg/m3. For waste gases from fixed pollution sources with organized emissions, with a sampling volume of 10 L and an injection volume of 1.0 mL, the method detection limit is 0.1 mg/m3 and the measurement limit is 0.4 mg/m3.
Haohan Chromatography (Shandong) Application Technology Co., Ltd. established a method for the qualitative and quantitative determination of methanol in ambient air or industrial waste gas using pure water direct absorption, employing headspace sampling and gas chromatography. The method has a minimum detection mass concentration of 0.590 mg·m^-3, with relative standard deviations ranging between 4.8% and 7.2%, and spiked recovery rates between 89% and 115%. The results demonstrate that the method is simple, sensitive, with a favorable linear range, low detection limit, good precision, and accurate qualitative and quantitative analysis. Practical sample measurements confirm that it fully meets the monitoring requirements for methanol in ambient air and waste gas.


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