环境空气和废气甲醇的测定5%Carbowax 20M Carbopack B填充柱
环境空气和废气甲醇的测定5%Carbowax 20M Carbopack B填充柱 详细信息：
名称：填充柱
色谱固定液：5%聚乙二醇
载体：石墨炭黑80-120目
规格：2m*3mm，2m*1/8
型号：5%Carbowax 20M Carbopack B
应用： HJ T33-1999 固定污染源排气中甲醇的测定气相色谱法
浩瀚色谱（山东）应用技术开发有限公司，采用石墨化碳黑填充柱测定环境空气和废气 甲醇的含量，外标法定量，结果满意。
环境空气和废气甲醇的测定5%Carbowax 20M Carbopack B填充柱 测试谱图：
HJ/T 33-1999 固定污染源排气中甲醇的测定 气相色谱法
1 适用范围
1.1 本标准适用于固定污染源有组织排放和无组织排放的甲醇测定。
1.2 以3倍噪音色谱峰高值计算，当色谱进样量为1.0 ml时，方法的检出限为2 mg/m3；定量测定的浓度范围为5.0-104 mg/m3。
2 方法原理
载气携带含有甲醇(CH3OH）的试样通过装有固定相的色谱柱，流出色谱柱的甲醇由氢火焰离子化检测器(FID)测定。以标准样品色谱峰的保留时间进行定性，以峰高（或峰面积）定量。
3 引用标准
下列标准所包含的条文，通过在本标准中引用而构成为本标准的条文。
GB 16297-1996 大气污染物综合排放标准
GB 16157-1996 固定污染源排气中颗粒物测定和气态污染物采样方法
4 试剂和材料
4.1 色谱固定液：5%聚乙二醇(Carbowax 20M)。
4.2 载体：石墨碳黑(Carbopack B) 80~120目。
4.3 载气：体积分数为高纯氮99.99％。
4.4 燃烧气：体积分数为纯氢99.9%。
4.5 助燃气：空气。
4.6 无碱玻璃棉。
4.7 甲醇标准气。
甲醇标准气的稀释方法：根据需要用100 ml全玻璃注射器进行稀释配气（参考《空气和废气监测分析方法》(1990) P42)。
5 仪器
5.1 气相色谱仪
5.1.1 检测器：氢火焰离子化检测器。
5.1.2 色谱柱
5.1.2.1 色谱柱类型：2m×2~3mm的玻璃（或不锈钢）填充柱
5.1.2.2 色谱柱填充物：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.