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          現在位置首頁>實驗耗材配件>色譜柱>色譜柱> 環境空氣和廢氣甲醇的測定5%Carbowax 20M Carbopack B填充柱
           環境空氣和廢氣甲醇的測定5%Carbowax 20M Carbopack B填充柱
           環境空氣和廢氣甲醇的測定5%Carbowax 20M Carbopack B填充柱
          •  環境空氣和廢氣甲醇的測定5%Carbowax 20M Carbopack B填充柱

          環境空氣和廢氣甲醇的測定5%Carbowax 20M Carbopack B填充柱

          產品報價:詢價

          更新時間:2022/5/6 7:53:48

          地:山東

          牌:浩瀚色譜

          號:5%Carbowax 20M

          廠商性質: 生產型,貿易型,服務型,

          公司名稱: 浩瀚色譜(山東)應用技術開發有限公司

          產品關鍵詞: 5%Carbowax 20M Carbopack B   石墨化碳黑   乙醇   二氧化碳   甲醇  

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          環境空氣和廢氣甲醇的測定5%Carbowax 20M Carbopack B填充柱

          環境空氣和廢氣甲醇的測定5%Carbowax 20M Carbopack B填充柱 詳細信息:


          名稱:填充柱

          色譜固定液:5%聚乙二醇
          載體:石墨炭黑80-120目

          規格:2m*3mm,2m*1/8

          型號:5%Carbowax 20M Carbopack B

          應用: HJ T33-1999 固定污染源排氣中甲醇的測定氣相色譜法


          浩瀚色譜(山東)應用技術開發有限公司,采用石墨化碳黑填充柱測定環境空氣和廢氣 甲醇的含量,外標法定量,結果滿意。


          環境空氣和廢氣甲醇的測定5%Carbowax 20M Carbopack B填充柱 測試譜圖:


          HJ/T 33-1999 固定污染源排氣中甲醇的測定 氣相色譜法

          1 適用范圍


          1.1 本標準適用于固定污染源有組織排放和無組織排放的甲醇測定。


          1.2 以3倍噪音色譜峰高值計算,當色譜進樣量為1.0 ml時,方法的檢出限為2 mg/m3;定量測定的濃度范圍為5.0-104 mg/m3。


          2 方法原理

                載氣攜帶含有甲醇(CH3OH)的試樣通過裝有固定相的色譜柱,流出色譜柱的甲醇由氫火焰離子化檢測器(FID)測定。以標準樣品色譜峰的保留時間進行定性,以峰高(或峰面積)定量。


          3 引用標準


                下列標準所包含的條文,通過在本標準中引用而構成為本標準的條文。


                GB 16297-1996 大氣污染物綜合排放標準


                GB 16157-1996 固定污染源排氣中顆粒物測定和氣態污染物采樣方法


          4 試劑和材料


          4.1 色譜固定液:5%聚乙二醇(Carbowax 20M)。


          4.2 載體:石墨碳黑(Carbopack B) 80~120目。


          4.3 載氣:體積分數為高純氮99.99%。


          4.4 燃燒氣:體積分數為純氫99.9%。


          4.5 助燃氣:空氣。


          4.6 無堿玻璃棉。


          4.7 甲醇標準氣。


                甲醇標準氣的稀釋方法:根據需要用100 ml全玻璃注射器進行稀釋配氣(參考《空氣和廢氣監測分析方法》(1990) P42)。 


          5 儀器


          5.1 氣相色譜儀


          5.1.1 檢測器:氫火焰離子化檢測器。


          5.1.2 色譜柱


          5.1.2.1 色譜柱類型:2m×2~3mm的玻璃(或不銹鋼)填充柱


          5.1.2.2 色譜柱填充物:5%Carbowax 20M Carbopack B 80-120目。



          Determination of Ambient Air and Exhaust Methanol 5% Carbowax 20M Carbopack B Packed Column


          Determination of Ambient Air and Exhaust Methanol 5% Carbowax 20M Carbopack B Packed Column 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



          Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. used graphitized carbon black packed column to determine the content of methanol in ambient air and exhaust gas, and quantified by external standard method, and the results were satisfactory.



          Determination of methanol in ambient air and waste gas 5% Carbowax 20M Carbopack B packed column Test chromatogram:


          HJ/T 33-1999 Determination of methanol in exhaust gas from stationary pollution sources-Gas chromatography


          1 Scope of application


          1.1 This standard is applicable to the determination of methanol in organized and unorganized emissions from stationary pollution sources.



          1.2 Calculated by 3 times the noise chromatographic peak height, when the chromatographic injection volume is 1.0 ml, the detection limit of the method is 2 mg/m3; the concentration range of quantitative determination is 5.0-104 mg/m3.


          2 Principles of the method


                The carrier gas carries a sample containing methanol (CH3OH) through a chromatographic column equipped with a stationary phase, and the methanol flowing out of the chromatographic column is detected by a hydrogen flame ionization detector (FID). Qualitative by the retention time of the standard sample chromatographic peak, quantitative by peak height (or peak area).


          3 Reference Standards


                The following standards contain provisions which, through reference in this standard, constitute provisions of this standard.


                GB 16297-1996 Comprehensive emission standard of air pollutants


                GB 16157-1996 Determination of particulate matter in exhaust gas from stationary pollution sources and sampling methods for gaseous pollutants


          4 Reagents and Materials


          4.1 Chromatographic fixative: 5% polyethylene glycol (Carbowax 20M).


          4.2 Carrier: Graphite carbon black (Carbopack B) 80~120 mesh


          4.3 Carrier gas: the volume fraction is high-purity nitrogen 99.99%.


          4.4 Combustion gas: the volume fraction is 99.9% pure hydrogen.


          4.5 Supporting gas: air.


          4.6 E-glass wool.


          4.7 Methanol standard gas.

                Dilution method of methanol standard gas: use a 100 ml all-glass syringe for dilution and gas distribution as needed (refer to "Analysis Methods for Monitoring and Analysis of Air and Waste Gas" (1990) P42).

          struments

          5.1 Gas Chromatograph

          5.1.1 Detector: hydrogen flame ionization detector.

          5.1.2 Chromatographic column

          5.1.2.1 Chromatographic column type: 2m×2~3mm glass (or stainless steel) packed column

          5.1.2.2 Column packing: 5% Carbowax 20M Carbopack B 80-120 mesh.